Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on May 13, 1991.
As of Tuesday, September 17th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsRemarks
D900-183390-91 BMW 318is 1.8L0-261-200-175

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-176-2
  • Executive Order 176-2 / D176-2
  • ARB # D-176-2
  • Executive Order No: D-176-2
  • C.A.R.B. No. D-176-2
  • Resolution D-176-2
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-176-2 PDF

D-176-2 Document:

CARB_D-176-2

(Page 1 of 2) State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—176—2 Relating to Exemptions Under Section 27156 of the Vehicle Code DINAN ENGINEERING, INC. PERFORMANCE CHIP Pursuant to the authority vested in the Air Resources Board ("ARB") by Section 27156 of the Vehicle Code; and Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the Health and Safety Code and Executive Order G—45—5; IT IS ORDERED AND RESOLVED: That the installation of the performance chip manufactured by Dinan Engingering, Inc. ("performance chip") has been found not to reduce the effectiveness of required motor vehicle pollution control devices and, therefore, is exempt from the prohibitions of Section 27156 of the Vehicle Code for those applications listed in Exhibit A, which is attached hereto and incorporated herein. This Executive Order is valid provided that installation instructions for this performance chip will not recommend tuning the vehicle to specifications different from those submitted by the device manufacturer. Changes made to the design or operating conditions of the device, as exempted by the ARB, that adversely affect the performance of a vehicle‘s — pollution control system shall invalidate this Executive Order. Marketing of this device using an identification other than that shown in this Executive Order or marketing of this device for an application other than those listed in this Executive Order shall be prohibited unless prior approval is obtained from the Air Resources Board. Exemption of a kit shall not be construed as an exemption to sell, offer for sale, or advertise any component of a kit as an individual device. This Executive Order does not constitute any opinion as to the effect the use of this device may have on any warranty either expressed or implied by the vehicle manufacturer. This Executive Order is granted based on results from emissions tests conducted in accordance with Cold—Start CVS—75 Federal Test Procedure. However, the ARB finds that reasonable grounds exist to believe that use of the performance chip may adversely affect emissions of motor vehicles when operating under conditions outside the parameters of the previously prescribed test procedures. Accordingly, the ARB reserves the right to conduct additional emission tests, in the future, as such tests are developed, that will more adequately measure emissions from all cycle phases. If such test results demonstrate that the performance chip adversely affects emissions during off—cycle conditions (defined as those conditions which are beyond the parameters of the Cold—Start CVS—75 Federal Test Procedure), this Executive Order shall be effectively rescinded as of the date the test results are validated. Further, if such test results or

DINAN ENGINEERING, INC. EXECUTIVE ORDER D—176—2 (Page 2 of 2) other evidence provides the ARB with reason to suspect that the performance chip will affect the durability of the emission control system, Dinan Engingering, Inc. shall be required to submit durability data to show that the durability of the vehicle emission control system is not, in fact, affected and/or that the add—on or modified part demonstrates adequate durability. In addition to the foregoing, the ARB reserves the right in the future to review this Executive Order and the exemption provided herein to assure that the exempted add—on or modified part continues to meet the standards and procedures of Title 13, California Code of Regulations section 2222 et seq. THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESQURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF DINAN ENGINEERING, INC.‘S PERFORMANCE CHIP. No claim of any kind, such as "Approved by the Air Resources Board" may be made with respect to the action taken herein in any advertising or other oral or written communication. Section 17500 of the Business and Professions Code makes untrue or misleading advertising unlawful, and Section 17534 makes violation punishable as a misdemeanor. Section 43644 of the Health and Safety Code provides as follows: "43644, (a) No person shall install, sell, offer for sale, or advertise, or, except in an application to the state board for certification of a device, represent, any device as a motor vehicle pollution control device for use on any used motor vehicle unless that device has been certified by the state board. No person shall sell, offer for sale, advertise, or represent any motor vehicle pollution control device as a certified device which, in fact, is not a certified device. Any violation of this subdivision is a misdemeanor." Any apparent violation of the conditions of this Executive Order may result in its rescission or submission to the Attorney General of California for such action as he deems advisable. 4 Executed at E1 Monte, California, this /53 d of May, 1991. 1 7 Summerfield Assistant Division Chief Mobile Source Division

CREAIBIT a List the nemes, model years, engine displacements and systems that are compatible with the device, and for which exemption is requested. Specify the correct device model for each vehicle. Oinan Engineering Make Model Years Displ ECU Number Performance Chip * BMW 318is 90—91 1.8 0—261—200— 175 D900—1833 BMW 325e 8BS—~87 2.7 0—261—200—027 0900—271 1 BM Ww 3251 87—88 25 0—261—200—153 D0900—253 1 BMW 3251 89—91 25 0—261—200— 173 0900—2532 BMwW 3251 89—91 25 0—261—200—380 D900—2533 BMW m—3 88—91 23 0—261—200—07 1 D900—232 1 BMW 5251 89—91 25 0—261—200—173 D900—2532 BMW 52591 89—9 1 2.5 0—261—200—524 D900—2534 BMW . §28e 85—87 2.7 0—261—200—027 D900—271 1 BMW §33i 84 3.2 0—261—200—008 D900—33 11 BMW §3Si 85—87 3.4 0—261—200—059 D900—352 1 BMW 5391 88 3.4 0—261—200—059 0900—3522 BMW §35i 89—91 3.4 0—261—200— 179 D900—3532 BMW M—§S 84—88 3.5 0—261—200—055 P900—3420 BMW M—S 87—88 3.5 0—261—200—079 D900—3421 BMW m—S 90—91 3.6 0—261—200—350 D900—363 | BMwW 633csi 84 3.2 0—261—200—008 D900—33 1 1 BMw 63Scsi 85—87 34 0—261—200—059 D900—3521 BMW 63Scsi 88 3.4 0—261—200— 150 D900—353 1 BMW 635¢csi 89 3.4 0—261—200— 179 D900—3532 BMw h—6 84—88 3.5 0—261—200—055 0900—3420 BMW M—6 87—88 3.5 0—261—200—079 D900—342 1 BMw 7331 84 3.2 0—261—200—008 D9800—33 11 BMW 7391 85—87 3.4 0—261—200—059 D900—352 1 BMW 7351 _‘ 88 3.4 0—261—200—150 0900—353 1 BMw 7351 B9—91 3.4 0—261—200— 179 D900—3532 BMw 750iL 88—91 5.0 0—261—200—156 D900—503 1

State of California AIR RESOURCES BOARD EVALUATION OF DINAN ENGINEERING, INC.‘S PERFORMANCE CHIP FOR EXEMPTION FROM THE PROHIBITIONS OF VEKHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA CODE OF REGULATIONS May, 1991

May, 1991 EVALUATICN OF DINAN ENGINEERING, INC.‘S PERFORMANCE CHIP FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA CODE OF REGULATIONS by Mobile Source Division State of California AIR RESOURCES BOARD 9528 Telstar Avenue E1 Monte, CA 91731—2990 (This report has been reviewed by the staff of the California Air Resources Board and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Air Resources Board, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.)

SUMMARY Dinan Engingering, Inc. has applied for an exemption from the prohibitions of Vehicle Code Section 27156 for their Performance Chip for installation on those model/model year BMW‘s listed in Appendix A. Dinan has submitted a completed application and other required information, as well as exhaust emissions test data performed at Automotive Club of Southern California Laboratory (ACSC) which shows thét their Performance Chip does not have any adverse effect on the exhaust emissions of the affected vehicles. Testing performed at the Air Resources Board {ARB) confirmed the test results of ACSC. Based on the submitted information and the results of the emissions tests performed at ACSC and the ARB, the staff concludes that the installation of Dinan‘s performance chip will not adversely affect exhaust emissions on the specified vehicles. The staff recommends Dinan Engineering, Inc. be granted an exemption as requested and that Executive Order D—176—2 be issued.

SUMMARY CONTENTS I. INTRODUCTION II. CONCLUSI III. RECOMMENDATIONS IV. CHIP V. DISCUSSION APPENDIX A — Model/model year BMW‘s compatible with the performance chip APPENDIX B — Performance Modifications APPENDIX C — Performance Chip part numbers and installation instructions 11

EVALUATION OF DINAN ENGINEERING, INC.‘S PERFORMANCE CHIP FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OFf THE CALIFORNIA CODE OF REGULATIONS. I. INTRODUCTION Dinan Engineering, Inc. (Dinan) of 81 Pioneer Way, Mountain View, California 94041, has applied for an exemption from the prohibitions of Vehicle Code Section 27156 for their Performance Chip for installation on those model/model year BMW‘s listed in Appendix A. Dinan has submitted a completed application and all the required information as well as data from exhaust emissions test performed at Automobile Club of Southern California Laboratory {ACSC) on a 1990 model year BMW 7351i. Confirmatory test was performed on the same vehicle at the ARB. II. CONCLUSION Based on the submitted information and the results from exhaust emissions test performed at ACSC and confirmatory testing conducted at the ARB, the staff concludes that Dinan‘s performance chip will not adversely affect exhaust emissions from vehicles for which the exemption is requested. III. RECOMMENDATIONS The staff recommends that Dinan Engingering, Inc. be granted an exemption as requested and that Executive Order D—176—2 be issued. IV. PERFORMANCE CHIP DESCR The purpose of the Dinan performance chip is to improve engine performance by increasing horsepower and the electronic rev—limit. Many computer controlled vehicles are equipped with electronic control units which are programmed utilizing a removable PROM. These PROMs contain the control unit‘s operating systems as well as all the data used to operate the

programs. By re—programming the data prom in the Electronic Control Module‘s (ECM), spark timing, fuel delivery and rev—limit can be adjusted. Adjustments to these parameters are necessary to increase horsepower and the rev—limit. The applicant states that the original equipment manufacturer‘s {OEM) system maintains closed loop fuel control at all times except start—up, part-throttie-hkgh-load and full—throttle. No modifications are made by the Performance Chip to any fuel delivery operating parameters during modes of closed loop control so that the air/fuel ratio in these modes are not altered. During open loop modes, the Performance Chip may change the ignition timing, fuel delivery and rev—limit, depending on the driving conditions. Under light—load conditions, the ignition timing is advanced to optimize fuel economy for premium fuel. Under high—load conditions, the ignition timing, fuel delivery and rev—limit are changed to optimize power output for premium fuel. Ignition timing is advanced from 0 to 15 degrees above the OEM setting. Fuel delivery is increased from O to 15 percent of the OEM setting or decreased from 0 to 15 percent of the OEM setting depending on the change from OEM that will be required to optimize the mixture ratio. Rev—limit is increased from 0 to 600 RPM (See Appendix B). Installation instructions, included with the chip, show the installer how to properly install the chip. Appendix C shows the installation instructions and the parts list. ¥. DISCUSSION A 1990 California—certified BMW 7351 with an automatic transmission was used for emissions testing at ACSC laboratory. The test program consisted of one FTP CVS—75 {cold start) test on the test vehicle in the

modified configuration (tested against the standard). The results of the exhaust emissions test performed at ACSC are shown in Table 1. Table 1 CVS—75 TEST RESULTS {Automotive Club of Southern California) HC CQ NOx Emission standards 0.41 7.00 0.7 Performance Chip 0.32 4.16 0.19 Confirmatory testing was performed at the ARB. The results are shown in Table 2. Table 2 CVS—75 TEST RESULTS (Haagen—Smit Laboratory) HC CQ NQx Performance Chip 0.33 5.24 0.18 The CVS—75 emissions test results at ACSC and confirmatory testing at the ARB indicate that HC, CO and NOx emissions of Dinan‘s performance chip are well below the emission standards. This demonstrates that the installation of the Dinan performance chip on specified vehicles will not adversely affect the exhaust emissions. Dinan submitted all the required information and fulfilled the requirements for an exemption. The test results confirmed that Dinan‘s Performance Chip meets the requirements for the exemption.

ELawad an List the nemes, model years, engine displacements and systems that are compatible with the device, and for which exemption is requested. Specify the correct device model for each vehicle. Dinan Engineering Mske Model Years Displt fECU Number Performance Chip * BMwW 3181s 90—9 1 1.8 0—261—200— 175 D900—1833 BMWw 325e 8§—87 2.7 0—261—200—027 D900—27 11 BMw 3251 87—88 25 0—261—200— 153 D900—253 1 Bnw 3251 89—91 25 0—261—200— 173 D900—2532 BMWw 3251 89—91 25 0—261—200—380 D900—2533. BMW M—3 B68—91 2.3 0—261—200—07 1 0900—2321 BMW 5251 89—91 25 0—261—200— 173 900—2532 BMw §$251 8B9—91 25 0—261—200—524 D900—2534 BMw 528e 8BS—87 2.7 0—261—200—027 09006—27 11 BMW 5331 64 3.2 0—261—200—008 D900—33 11 BMwW 535 8S—87 3.4 0—261—200—059 D900—352 1 Bnw 5391 88 3.4 0—261—200—059 D900—3522 BMW 5351 89—91 3.4 0—261—200— 178 D900—3532 BMW M—5 84—08 3.5 0—261—200—055 ©900— 3420 BMw M—5 87—88 3.5 0—261—200—079 D9006—3421 Bgnw M—S5 90—91 36 0—261—200—350 D900—363 1 BMW 633csi 84 3.2 0—261—200—008 D900—331 1 Bnw 63Scsi B8B5—87 3.4 0—261—200—059 D900—352 1 BM W 835csi 88 3.4 0—261—200— 150 D900—353 | BMWw G35csi 89 3.4 0—261—200— 179 D960—3532 BMNw M—6 84—88 3.5 0—261—200—055 D900—3420 BMW M—6 87—B88 3.5 0—261~200—0798 0900—342 1 BMw 7331 84 3.2 0—261—200—0086 D900—33 1 1 BM Ww 7391 85—87 3.4 0—261~200—059 D900—352 1 BMw 735i _‘ 88 3.4 0—261—~200—150 D900—353 1 BMW 7351 89—91 3.4 0—261—200— 179 D900—3532 Bhw 750L B88—91 5.0 ‘0—261—200— 156 ©900—503 1

APPENDIX 3 Moge or Control| Moaification to Modification to Mogification to Feature Mode Iignition timing Ignition timing Rev—limit Above 08M % of OEM Above OEM Cold—start OPEN NONE NONE NA Cola—hmigh—idle OPEN NONE NONE NA warm—start UPEN NONE NONE NA Warm—idle CLOSED| NONE NONE NA Lignt—load—part—throttle CLOSED| Q—5 NONE NA C * High—load—part throttle OPEN O—15 */~ 15 0—600 Full—throttle OPEN O—15 r/~ i5 0—600 Deceleration CLOSED| NONE NONE NA Deceleration—fuel—cut NA NONE NONE NA ldle speeqd control CLOSED! NONE NONE NA

AFFERDIX C item C—1 Installation Instructions for D900—27 11 Item C—2 installation Iinstructions for D900—33 11 Item C—3 Installation instructions for D900—2321 D900—3420 D900—3421 D900—3521 0900—3522 ltem C—4 Installation Instructions for D9800—2531 D900—353 1 D900—503 1 D900—363 1 item C—S Installation Instructions for B900—2532 D900—3532 Item C—S5A Installation Instructions for D900—2533 Item C—58 Installation Instructions for D900—2534 Item C—6 Installation Instructions for D910—3221 0910—3222 Item C—7 Installation Instructions for 8910—2522 Item C—8 Installation Instructions for D900—1833

C—1 DINAN ENGINEERING PERFORMANCE CHIP INSTALLATION MOTRONIC— 1 1985— 1987 325e BOSCH ECU #0—261—200—027 or #0—261—200—02 1 1985— 1987 528e BOSCH ECU *#0—261—200—027 or #0—261—200—02 1 Thank you for purchasing a Dinan Engingering power chip. Many hours of research and development have gone into each program to optimize ignition and fuel delivery curves for maximum power Some mechanical skill is requireo to perform this operation. if you feel that you 30 not possess the required skill please arrange to have a qualified repair facility do the installation for you. if you encounter any difficulties during this installation or if these instructions are not clear to you please call Dinan Engineering for assistance @ 415—962—9417. TOOLS REQUIRED FOR INSTALLATION: —Phillips screwariver ({medium) ~Phillips screwariver (large} —Standard screwdriver (small) ~Standard screwdriver (pocket size) —iOmm sochet on 3/8 or 1/4 arive ralcnet with 6" extension REMOVE ELECTRONIC CONTROL UNIT (ECU) FROM VEHICLE: 325e ONLY 1. Open glove box, remove ping securing limiting straps to sides of glove box and aliow glove box to open all the way. 2. Remove the fasteners securing plastic glove box roof panel. Pull this panel cownand allow it to rest in the glove box. 3. Remove the 1Omm boits or the Phillips screws securing the ECU. Let the ECU srop down and remove the wiring narness from it. Take ECU to the workbench. 528e ONLY 1. Open glove box, remove pins securing limiling straps to siges of glove box ana allow glove box to open all the way. 2. Remove viny! glove box roof from rear of glove box by pushing up on vinyl where it connects to rear wall of glove box. Swing viny! roof out of glove box. DQ NOT remove front eng of vinyl roof as this will destroy the snaps that hold it on. Use a piece of tape to hold the vinyl to the desnboard so that it is out of your way. 3. Remove the 10mmbolts or the Phillips screws securing the ECU. Let ECU grop sown and remove the wiring harness from it. Take ECU to the workbench.

CN THE WCREKBENCH 4 Read Bosch part number on ECU. Should be: 0—261—200—027 0—261—200—021 if your computer does not display one of these part numbers call Dinan Engineering & <.5—562—9417 DO NOT install the power chip! 5. P‘ace ECU on workbench with part number label face down and remove the four screws holding the cover on Separate case, set cover aside (you are removing the cover with no lapels oo it). 6. Remove the four screws and the rubber vibration isolator securing the printed cirs :t (PC) board to the computer chassis. Lift the PC up ang filp it over as shown in figure 1 . See figure 1. Find the socketed chip on the upper beard. This chip is eleveted higt=" than any similar chip on the board. 8. Remove chip from socket by inserting the pocket screwdriver belween the chip ans the socket and prying up gently. Pry up in stages swilching ends as you go until the chip is totally locse. Set stock chip aside. 9. See figure 2. Notice the small divol on one end of the power chip. Notice a similar zyot on one end of the socket. The chip must be inserted so that both divots are on the same side. Som ECUs will have a 28 pin chip socket. The Dinan 24 pin chip will workin these ECUs. Plug the 24 pin crip in the 28 pin socket lining up the Nat edge of the chip to the socket as in figure 2. First Insert one row of pins in one side of the socket part—way. With two fingers push on the other side of the chip until tme other row of pins line up with the socket and then push down on chip. Use your other hand to suppert the bottom sige of the PC board directly below the socket while you push down on chip to make sure tret it is inserted all the way. Cautiont BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket holes are fillec with pins except for those that should be empty on a 28 pin socket. 10. Reassemble computer .Install ECU in venicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law *Smog Legal® in California under; ARB E.0. No. D—XXX


FIGURE 2 | —— The EPHOM!S correctly installed when the EPROM flat edge aligns with tho 1C socket flat edgo. EPROM FLAT ____ EDoE 1C SOCKET FLAT EDGE Some control [un'ns will have a 28 pin IC socket. When Installing the 24 pin updated EPR?M in a 28 pin socket, the EPROM flat edge must align with the IC flat edge. A this Important polint is not followed, the control unit will not opsrate and EPROM damage may result. EPROM FLAT EDGE 1t sockEr ___ FLAT Ebag

CAz DINAN ENGINEERING PERFORMANCE CHIP INSTALLATION MOTRONIC— t 1984 533i, 633i, 733i BOSCH ECU #0—261—200—008 Thank you for purchasing a Dinan Engineering power chip. Many hours of research ang development have gone into each program to optimize igmbon and fuel dehvery curves for maximum power. Some mechanical skili is required to perform this operation. If you feel that you do not possess the required skill please arrange to have a qualified repair facility do the instailation for you. If you encounter any difficulties during this installation or if these instructions are not clear to you please call Dinan Engineering for assistance @ 415—962—9417. TOQLS REQCUIRED FOR INSTALLATION: —Phillips screwdriver {medium) ~Phillips screwdriver Clarge) ~Standard screwdriver (small) —Standard screwdriver (pockel size) —1Omm socket on 378 or 1/4 drive ratchet with 6" extension REMOVE ELECTRONIC CONTROL UNIT (ECU)FROM VEHICLE: ALL CARS EXCEPT 7331 1. Open glove box, remove pins securing limiting straps to sides of glove box and allow glove box to open all the way. 2. S33i (cars with vinyl glove box roof) OHLY. Remove viny! glove box roof from rear of glove box by pushing up on vinyl where it connects to rear wall of glove box. Swing viny! reof out of glove box. DO NOT remove front end of viny! roof as this will destroy the snaps that hold it on. Use a piece of tape to hold the vinyl to the dasnboard so that it is out of your way. 2. 633i (cars with hard plastic glove box roof) ONLY. Remove the fasteners securing plastic glove box roof panel. Pull this panel down and allow it to rest in the glove box. 3. Remove the 10mm bolts or the Phulliss screws securing the ECU. Let ECU drop down and remove the wiring harness from it. Take ECU to the workbench. 7331 ONLY 1. Remove the Phillips screws securing passenger side front speaker panel. Swing panel out of the way. 2. Remove the tOmm bolts or the Phillips screws securing ECU. Let ECU drop down and pull it out of the hole that it is in, Remove the wiring harness from the ECU. 3. Take ECU to the workpench.

ON THE WORKBENCH: 4 Read Bosch part number on ECU. Should be: 0—261—200—008 If your computer does not display one of these part numbers call Dinan Engineering @ 41$—362—9417. DO NOT install the power chip! S. Place ECU on workbench with part number label face down and remove the four screws holding the cover on. Separate case, set cover aside (you are removing the cover with no labels on :t) 6. Remove the four screws ana the rubber vibration isolator securing the printed cire=it (PC) board to the computer chassis, Lifl the PC up and fip it over as shown in figure 1. 7. See figure 1. Fing the socketed chip on the upper board. This chip is elevated higher tnan any similar chip on the boeard. If your computer does not have a socketed chip and ts different from the computer shown in figure 1 DONOT proceed any further! You have an early version computer which can not utilize this Dinan Performance Chip. Call Dinan Engineering @ 415—962—9417. 8. Remove chip from socket by inserting the pocket screwdriver between the chip and the socket and prying up gently. Pry up in stages ewitching ends as you go until the chip is totally loose Set stock chip aside. 9. See figure 2. Notite the small divot on one end of the power chip. Notice a similar avot on one end of the socket. The chip must be inserted so that both divots are on the same side. Some ECUs will have a 26 pin chip socket. The Dinan chip will work in these ECUs. Plug the 24 pin chip into2 28 pin socket lining up the flat eage of the chip to the socket as in figure 2. First insert one row of pins in one side of the socket part—way. With two fingers push on the other side of the chip until the other row of pins line up with the socket and then pusn down on chip. Use your other hand to support the bottomm: side of the PC board directly below the socket while you push down on chip to make sure that it is inserted all the way. Cautiont SE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the ping are in a socket hole and that all socket holes are filled with pins except for those that should be empty on a 28 pin socket. 10. Reassemble cormputer Install ECU in vehicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law. *Smog Legal® in California under; ARB E.0. No. D—XXX


FIGURE 2 —— The EPROMJS correctly installed when the EPROM fiat edge aligns with the IC socket fiat edge. EPROM FLAT ___ _ Epag IC SQOCKET FLAT EDGE — Some contro!‘units willl have a 28 pin IC sockat, When installing the 24 pin updated EPR&)M in a 28 pin socket, the EPROM flat edge must align with the IC fiat edge. f thia iImportant polat is not followed, the control unit will not opsrate qnd EPROM damage may result. EPROM FLAT Ebor 1C SOCKET FLAT EDGE

DINAN ENGINEERING POWER CHIP INSTALLA TION FOR MOTRONIC—2 1985—88 5351. 1985—87 635i, 735i BOSCH ECU #0—261—200—059 USA M—5, M—6 BOSCH ECU ©0—261—200—079 USA M—3 BOSCH ECU #0—261—200—07 1 EURCG M—5, M—6 BOSCH ECU *0—261—200—055 Thank you for purchasing a Dinan Engineering power chip. Many hours of researcr. and development have gone into each program to optimize ignition and fuel delivery curves for maximum power. Some mechanical skill is required to perform this operation. if you feel that you as not possess the required skill please arrange to have a qualifled repair facility do the Instaliation for you. if you encounter any difficulties during this installation or if these instructions are not clear to you please call Dinan Engineering for assistance @ 415—962—3417, TOOLS REQUIRED FOR INSTALLATION: ~Phillips screwdriver (medium) ~Standard screwdriver (small) ~Standard screwdriver (pocket size} ~1Qmm socket on 378 or 1/4 drive ratchet with 2" extension ~Blunt nose pliers (medium?) REMOVE ELECTRONIC CONTROL UNIT (ECU)FROM VEHICLE: ALL CARS EXCEPT 7351 1. Open glove box, memove pirs securing limiting straps to sides of glove box and allow glove box to open all the way. 2. 5351, M—S (cars wilh viny! glove box roof} ONLY. Remove viny! glove box roof from rear of glove box by pushing up on vinyl where it connects to rear wall of glove box. Swing vinyl roof out of glove box. DQ NOT remove front end of vinyt roof as this will destroy the sneps that hold it on. Use a piece of tape to hold the vinyl to the dashboard so that it is out of your way. 2. 6351, M—6, M—3 (cars with hard plastic glove box roof} ONLY. Remove the fasteners securing plastic glawe box roof panel. Pull this panel down and allow it to rest in the glove box. 3. Remove the 10mm bolts or the Phillips screws securing the ECU. Let ECU drop down and remove the wiring harness from it. Take ECU to the workbench. 73591 ONLY 1. Remove the Phillips screws securing passenger side front speaker panel. Swing panel out of the way. 2. Remove the 1Ommbolts or the Phillips screws securing ECU, Let ECU drop down and putl it out of the hole that it is tn. Reriove the wiring harness from the ECU. 3. Take ECU to the worktbench

ON THE WORKBENCH. 4. Reag Bosctrpart number on ECU. Should be: 0—261—200—059 or 0—261~200—079 or 0—261—200—07 1 or 0—261—200—055 If your computer does not display one of these part numbers call Dinan Engingering & 415~5962—9417 DO NOT install the power chip! S. See figure 1. Place ECU on workbenich with part number label face down and using tne pocket screwdriver pry the ten lock tabs that hold the unit together up slightly. Just enough to get the small screwdriver under the tabs and finish prying the labs straight up. Separate case, set cover aside, 6. See figure 2 and figure 3. Hold ECU with metal side down and the plug ena fecing eway. Gmp mounting tabs with both hands and push up on upper printed circult (PC) board where the two plastic pedestals connect to the PC board. The object here is to separate the pedestal snap connections. Cautiont DO NOT PUSH UP ON CORNERS OF PC BOARD OR BOARD WiILL FLEX AND SREAKI 7. Raise rear portion ofboard which was just unsnapped and slide board away from plug, until the board disengages from the plug housing. Flip over upper PC board so that both PC boards are face up. 8. See figure 4. Find sotketed chip on the upper board. This chip can be identifieg by a sticker with a series of numbers printed on it and that it is elevated higher than any simflar chip on the beard. 9. Remove chip from socket by inserting the pocket screwdriver between the chip and the socket and prying up gently . Pry up in stages swilching enas as you go until the chip is totally loose. Set stock chip aside. . 10. See figure 5. Notice the small divet on one end of the power chip. Notice a similar divet on one end of the socket. The chip must be inserted so that both divots are on the same side. First insert one row of pins in one side of the socket part—way . With two fingers push on the cther side of the chip until the other row of ping line up with the socket ang then push down on chip. Use your other hand to support the botlomn side of the PC board directly beiow the socket while you push down on chip to make sure that it is inserted all the way. Cautiont BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket holes are filleg with pins. 11. Reassemble PC boeards. Reinstall cover on ECU making sure to Insert the white plastic sheet first. Use pliers to bend cover lock tabs back into place. Install ECU in vehicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fugl, 91 octans or batter. The information contained on this chip ts the sole property of Dinan Engingering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law. *Smog Legal® in California under ; ARB E.0. No. D~XXX

NMOHS S¥ Sgvi y907 an ON3I ’_ngu

FIGURE ‘ GRIP MOUNTING TABS AND PUSH UP OIQPPER PC Boarp. PuSH UP WHERE PLASTIC PEDESTALS ARE, NOT ON THE corNERS, a C357 C rreesact ond MBE } -u..u-u; Er m ) I;fi'l“‘l fl';fl:\' M wllIl1])

~0 moures @ . UPPER PC BOARD * Mflmwmwyxu PEDESTAL SNAP CONNECTION —>EFFE4 : ie.:f'aw“’.:s LOWER PC BOARD > goes=— es a *AMW ' METAL Bage —> _ 21 7 —— PEDESTAL SNAP CONNECTIONS CLOSED eesongon PUSH UP HERE /fi4. 5‘1{: IH ' 2. 4 AULLL LE1 CAE E 149 p AATFE ~a 6. PDPPLr ; HHL PLPH PEDEST AL SNAP CONNECTIONS OPEN

\m:o_.._ daxyog No NoI1Lv30T7 dIH]} .

FIGURF~ C CHIPp KE SURE DIVOTS ARE ALIGNE D _4 4 SockEt

DINAN ENGINEERING PERFORMANCE CHIP INSTALLATION MOTROXIC— 3 Yersion 1 1988 6351, 7351 BOSCH ECU *0—261—200—150 1988—1991 750il BGSCH ECU #0—261—200—156 198 7— 1988 3251 BOSCH ECU #0—261—200—153 1991 MS BOSCH ECU #0—261—200— 350 Thank you for purchasing & Dinan Engineering power chip. Many hours of research and development have gone into each program to optimize ignition and fuel delivery curves for maximum power. Some mechantcal skill is required to perform this operation. If you fee} that you do not possess the required skill please arrange to have a qualified repair facility do the installation for you. if you encounter any difficulties during this installation or if these instructions are not clear to you please call Dinan Engineering for assistance @ 415—962—9417. TOQLS REQUIRED FOR INST ALL ATION: ~Phillips screwdriver (medium) ~Phillips serewdriver Carge) ~Standard screwdriver (small) ~Standard sorewdriver {pocket size) ~10mm socket on $78 or 174. drive ratchet with 6" extension ~Blunt nose pliers (medium) REMOVE ELECTRONIC CONTROL UNIT (ECU) FROM VEHICLE : $251, 6351 OHLY 1. Open glove box, remove pins securing limiting straps to sides of glove box and allow glove box to open all the way . 2. Remove the fasteners securing plastic glove box roof panel. Pull this panel down and allow it to rest in the glove box. 3. Remove the 1Omm bolts or the Phillips screws securing the ECU. Let the ECU drop down and remove the wiring harness from it. Take ECU to the workbench. MS, 735i, 750i OHLY 1. See figure 1. Open hood, loosen four large Phillips screws securing black plastic cover located on passenger side of engine bay between strut tower and firewall. Remove cover, set aside. MS, 735i ORLY 2. See figure 2. Disconnect wiring harness from Motronic ECU. Remove the 1Omm nuts securing ECU to chassis. 3, Pull ECU straight up. Take ECU to the workbench.

7901 ONLY 2. See figure 3. Disconnect wiring harness from both Motronic ECUs. Remove both black plastic wire protectors from ECU mounting tabs by pulling straight up. Remove the 10min nuts securing ECUs to chassis 3. Pull ECUs straight up. Take ECUs to the workbench. Perform steps 4 thru 1% on both ECUs. ON THE WORKEBENCH : 4. Read Bosch part number on ECU. Should be: 0—261—200—150 or 0—261—200—153 or 0—261—200—156 or 0—261—200—350 If your computer does not display one of these part numbers call Dinan Engineering @ 415—962—9417. DQ HOT install the power chip! S. See figure 4. Plase ECU on workbench with part number label face down and using the pocket screwdriver pry the ten lock tabs that hold the unit together up slightly. Just enough to get the small screwdriver under the tabs and finish prying the tabs straight up. Separate case, set cover aside. Check to make sure your ECU has two printed circuit (PC) boards. If you have a single PC board ECU you have 3 newer design ECU and this chip will not work. .Call Dinan Engineering @ 415—962—9417. 6. See Tigure S and figure 6. Hold ECU with metal side down and the plug end facing away . Grip mounting tabs with both hands and push up on upper printed cireuit (PC) board where the two plastic pedestals connect to the PC board. The object here is to separate the pedestal snap connections. Caution! DO MOT PUSH UP OH CORNERS OF PC BOARD OR BOARD WILL FLEX AND BREAK! 7. This is the most difficult step! See figure 7 to understand the goal of this step, See figure 8 to understand how the latches are arranged. Hold ECU with metal side down and plug end facing you. With one hand apply upward pressure on upper PC board, as in step 6. At the same time , with your other hand, use the pocket screwdriver to release the plastic latches located inside the plug housing at both ends of the top row of pins (see f1g.8). To release these latches insert the pocket screwdriver in the gap between the latch and the plug housing and rotate. The upward pressure on the upper PC board should keep the latches from relatching when the screwdriver is removed. While maintaining this position insert the small serewdriver between the plug housing and the plastic that the top row of pins are molded into and rotate, then pull the upper PC board away from the plug housing. DO NOT pry against any of the pins as they may becorne damaged. Pull back on upper PC board until the pins clear the plug housing and then flip over the upper PC board so that both PC boards are face up as in figure 7. 8. See figure 7. Find the socketed chip on the upper board. This chip can be identified by the black plastic "H" shaped retaining elip locking it into the socket and that it is elevated higher than any similar chip on the board. 9. See fiqure 9. Remove the "H" shaped retaining clip by inserting the pocket sorewdriver into one of the small slots in the retaining clip and pry ing towards the other slot. The retaining clip—will pop up on the side the screwdriver is inserted in, use a finger to hold that side up while you insert the screwdriver in the other slot and release the other side. Lift retaining clip off of the chip and set aside, ({ A

10. Remove chip from socket by inserting the pocket screwdriver between the chip and the socket and prying up gently . Pry up in stages switching ends as you go until the chip is totally loose. Set stock chip aside 11. See figure 10. Notice the small divot on one end of the power chip. Notice a similar divot on one end of the socket. The chip must be inserted so that both divots are on the same side. First insert one row of pins in one side of the socket part—way.. With two fingers push on the other side of the chip until the other row of ping line up with the socket and then push down on chip. Use your other hand to support the bottom side of the PC board directly below the socket while you push down on chip to make sure that it is inserted all the way. Caution! BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket holes are filled with pins. 12. Reinstall retaining clip. Reassemble PC boards making sure that upper PC board is pushed into the plug housing all the way and that the latches are fully engaged. Reinstall cover on ECU making sure to insert the white plastic sheet first. Use pliers to bend cover lock tabs back into place. Install ECU in vehicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engingering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law. "Smog Legal" in California under; CARB E.0. No. D—XX%

AING 1067 pug i6¢z *‘gu SNONLY3O1 MJIYDS SYHYLW .X, 7 43A03 3LSYTId »¥771g~~|| /%” INION3 HIJMOL LINYLS YOLYIIvH LNOY4 _— 1 34N9H

YQLJILOHd IJHIM dLLSY Td Y3¥71G bou dFL04%g 38M N1S¥74 NV TE \ F I &« NJ MNOYLQONW NJF HMNQOXILOW Y @ NJ3 10H1NOD 3SIANYD NJ3 A008 331 108§HL T# N3 JINOY1IOW NJ3 Sgv MJ3 SE¥ Y ATMQ 10SL AINQ 1SEZ SW x & 3§¥NQHM _ ="~ anfiHd _ _ JN9¢ LHOH4

FIGURE 4e t . BEND UP LOCK TABS AS SHOWN

FIGURE S — . ce € us .'-who‘ uJH smm 1..“““ ntseoray.

FIGURE 6 UPPER PC BOARD * PEDESTAL SNAP CONNECTION LOWER PC BOARD * ; METAL BASE —> _ PEDESTAL SNAP CONNECT IONS CLOSED PUSH UP HERE a. t a m «4 in 3 < a. o 5 = 3 ul 2 a uw 5 A. is z7 &

FIGUREFC 1 T “"J ‘ ‘9 & i npome Mess o ereeeeinelllllllls l on e ny en epene n on al 0 * YEnnlane ©@0)a00 . 3 : R Ni' go 3 ' TOP ROW OF PINS —>— _ «W j §X ! P PLUG HOUSING > 4 — &— z as 70. ge— m — Y = e e | "H" SHAPEDCHIP RETAINING CLIP —>» eg_tAs 22. © Al LOWwER PC BoARD _*® “_'_‘ 4n o $ UPPER PC BOARD f— ‘ 1 Do 1— ‘ I — | — "ikh | _ _~ ® 0. © +

INSERT SMALL SCREWORIvER HeRg ROTATE AND WITH YOUR OTHER HAND PULL BACK ON UPPER PC BOARD <——Plastic latch "IGURE 9 : FIGurE to |_pry this way UNTIL CLIP popS UP @ mms e s ns e ce es CCC uim . SM)Q’DK_/ POCKET SCREWDRIVER —» ChH MAKE SURE DOIVOTS \L \L J/ ARE ALIGNED LE

DINAN ENGINEERINO POWER CHIP INSTALLATION MOTRONIC—3 Yersion 2 1989—>5351, 6351, 7351 BOSCH ECU #0—261—200— 179 1989— 1990 3251, 325tx, 5251 BOSCH ECU «0—261—200— 173 Thank you for purchasing a Dinan Engineering power chip. Many hours of research and development have gone inlo each program to optimize ignition and fuel delivery curves for maximum power Sorae ttechanical skill is required to performthis operation if you feel that you do not possess the required skill please acrange to have a qualifted repair Tacility go the instaliation for you. If you encounter any difficulties during this installation or if these instructions are not Clear to you please call Dinan Engineering for assistance @ 415—962—9417. TOOLS REOLIRED FOR INSTALLATION: —Ptillips screwgriver (medium) —Ptuilips screwariver Clarges —Standard screwdiiver (omall) ~Standard strewariver (pocket size) —10mmm socket on 378 or 1/4 drive ratchet with 6" extension ~Blunt nose pliers (medurn) REMOVE ELECTRONIC CONTROL UNHT (ECU) FROM VEHICLE. 3251, 6351 ONLY 1. Open glove box, remove pins securing limiting straps to sides of glove box and allow glove box to spen all the way 2. Rernove the fasteners securing plastic glove box roof panel. Pull tmis panel gown and allow it to rest in the glove box 3 Retnove the 10rmmbolts or the Phitlips screws securing the ECU. Let the ECU drop down ang remove the mring harness fromit. Take ECU to the workbench. §25i, S351, 7351 ONLY 1. See igure 1 Oped hnood, loosen four large Phillips screws securing black plastic cover located on passenger side of engine bay between strul tower and firewall. Remove cover, set aside. T 2. See figure 2. Disconnect wiring harness from Motronic ECU. Remove black plastic wire protector trom ECU mounting tab by pulling straight up. Remove the 1Omm nuts securing ECU to chassis. 3. Pull ECU straight up. Take ECU to the workbench, CH THE WORKBENCH: 4. Read Bosch part number on ECU. Should be: 6—261—200—179 or 0—261—200—173 if your computer does not gisplay one of these part numbers call Dinan Engineering @ 415—962—9417. DC NOT install the power chipt

5 See ligure 3 Place ECU on workbench with part number label face gown and using the pocket screwdriver pry the ten lock tabs that hold the unit together up slightly Just enough to get the small screwdriver under the labs and finish prying the labs straight up. Separate case, set cover aside Check to make sure your ECU has one printed circuit (PC) board. If you nave a two PC board ECU you have an older design ECU and this chip will not work. Call Dinan Engineering @ 415—962—9417. 6. See figure 4 Find the sockeled chip on the board. This chip can be identified by tne black plasti¢ "H" shaped retaining clip locking it into the socket and that it is elevated higher than any similar chip on the board 7. See figure 5. Remove the °H" shaped relaining clip by Inserting the pocket screwgriver into one of the smatl stots in the retaining clip and prying towards the other siot. The retaining clip will pop up on the side the screwdriver is inserted in, use a finger to hold that sige up while you insert the screwariver in the other slot and release the other side. Lift retaining clip off of the chip and set aside. 10 Remove ctip fromsocket by inserting the pocket screwdriver between the chip and the socket and prying up gently. Pry up in stages switching ends as you go until the chip is totally isose. Set stock chip #Sig¢ . 11. See figure 6. Notice the small divot on one end of the power chip. Notice a similar divol on one end of the socket. The chip must be Inserted so that bothdivets are on the sarme side. First Insert one row of pins in one sige of the socket part—way . With two fingers push on the other side of the. chip until the other row ofpins line up with the socket and then push down on chip and make sure that It is Inserted all the way. Cautiont BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the ping are in a socket hole and that all socket holes are filled with pins. 12. Reinstall retaining clip. Reinstall cover on ECU; use pliers to bend cover lock tabs back into place. Install ECU in vericle, This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and 1ts reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law. *Smog Legal® in California under; ARB E.0. No. D—XXX

FIGURE 3 SHOWN BEND UP LOCK TABS AS i g:s.

FIGURE 4 TT

W onh DINAN ENGINEERING POWER CHIP INSTALLATION MOTRONIC— 3 Yersion 2 1989— 1990 3251, 3251x BOSCH ECU *#0—261—200—380 Thank you for purchasing a Dinan Engineering power chip. Many nours of research and development have gone into each program to optimize ignition and fuel gelivery curves for maximum power Some mechanical shill is required to perform this operation. If you feel that you co not possess the required skill please arrange to nave a qualified repair factlity do the instaliation for you. if you encounter any difficulties auring this installation or if these instructions are not clear to you please call Dinan Engineering for assistante @ 415—962—9417. TOXAS REQUIRED FOR INSTALLATION: ~Phillips screwdriver (medium) ~Phillips screwdriver (large} —Standard screwdriver (small) ~Standard screwdriver (pocket size) —1Ommsackel on 3/8 or 1/4. urive ratchet with 6" extension ~Blunt nase pliers (medium) REMOVE ELECTRONIC CONTROL UNIT (ECU)FROM VEHICLE: 1. Open glove box. remove pins securing limiting straps to sides of glove box and allow glove box to open all the way. 2. Remave the fasteners securing plastic glove box roof panel. Pull this panel down and allow it to rest in the glove box 3. Remove the 1Orm bolts or the Phillips screws securing the ECU. Let the ECU drop down ang remove the wiring harness fromit. Take ECU to the workberich. (it THE WORKBENCH 4. Pesd Bosch part number on ECU Should be: 0—261—200—380 If your computer does not display one ofthese part numbers call Dinan Engineering @ 415—962—9417. DO HOT install the power chipt

S Place ECU on workbench with part nutnber label facing up and remove the four small screws near the plug housing See figure 3. Place ECU on workberich with part number label face down and using the packet screwdriver pry the ten lock tabs that hold the unit together up slightly. Just enough to get the smmall Sorgemdriver under the tabs and finish prying the tabs straight up. Separate case, set cover asige. Check to make sure your ECU has one printed circuit (PC) board. if you have a two PC board ECU you have an older design ECU and this chip will not work. Call Dinan Engineering @ 415—962—9417. 6 See figure 4 Find the socketed chip on the board. This chip can be identified by the black plastic "H" snaped retmirung clip locking it into the socket and that it 1s elevated higher than any similer chip on the board. 7. See figure 5 Remove the "H" shaped retaining clip by inserting the pocket screwdriver into one of the small slots in the retatrung Clip and prying towards the other slot. The retaiming clip will pop up on the side the screwariver is inserted in, use a finger to hold that side up while you insert the scre wdriver in the other slot and release the other sige. Liff retaining clip off of the chip and set aside. 10. Retieve thip from sotket by inserting the pocket screwdriver between the chip and the socket and prying up gently . Pry up in stages switching ends as you go until the chip is totally loose Set stock chip aside 11. See figure 6. Notice the small divet on one end of the power chip. Notice a similar divot on one end ofthe socket. The chip must be inserted so that both divots are on the same side. First insert one row of pins in one side of the socket part—way. With two fingers push on the other side of the chip until the other row of pins line up withthe socket and then push down on chip and make sure that it is inserted all the way. Cautiont BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket holes are filled with pins. 12. Reinstall retaining clip. Reinstall cover on ECU, use pliers to bend cover lock tabs bactk into place. Replace the four screws removed in step 5. Install ECU in vehicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law. "Smog Legal® in California under; ARB E.0. No. DO—XXX

FIGURE 3« i~ BEND UP LOCK TABS AS SHOWN

r1gumrt 4p_. euutta ! [JB "n" shapeo chir ectaiminc cuir x8 d~€ -\"@L ‘ l \ '.%_ yas .A«y‘ batot‘ys 14

FIGURE 5 FIGURE 6 PRY THIS WAY UNTIL CLIP POPS UP ) [ TT * y ; s A OCKET SCREWDRIVER —» Q S 3 & CHIP MAKE SURE DIVOTS i \L \l/ ARE ALIGNED -\ . ) . SOckET SLOTS , J 11 I~—~— TOP VIEW SIDE VIEW

C—u. DINAN ENGINEERING POWER CHIP INSTALLATION MOTRONIC— 3 Yersion 2 1990 5251 BOSCH ECU #*0—261—200—524 Thank you for purchasing a Dinan Engineering power chip. Many hours of research and development have gone into ach program to optimize ignition and fuel dehvery curves for maximurm power. Some thechanical skill is required to perform this operation. if you feel that you do not posSess the required skill please arrange to have a qualified repair facility do the iInstaltation for you. If you encounler any difficulties during this installation or If these Instructions are not clear to you please call DinanEngineering for assistance @ 415—962—9417. TOOLS REGUIRED FOR INSTALLATION: —Phillips screwdriver (large) ~Standard screwdriver (small) ~Standard screwariver (pocket size) —10mimsucket on 378 or 1/4. drive ratchet with 6" extension ~Blunt nose pliers (medium) REMOVE ELECTRONIC CONTROL UKNIT (ECU) FROM VEHICLE: 1. See figure 1. Open hood, loosen four large Phillips screws securing black plastic cover localed on passenger sige of engine bay between strut tower and firewall. Remove cover, set aside. 2. See Nigure 2. Disconnect wiring harness from Motronic ECU. Remove black plastic wire protector from ECH mounting tab by pulling straight up. Remove the 10mm nuts securing ECU to chassis, 3. Pull ECU straight up. Take ECU to the workbench. ON THE WORKEBENCH: 4. Read bosch part number on ECU. Should be: 1—262—200—524 if your computer does not display one of these part numbers call Dinan Engineering & 415—962—9417. DQ NOT install the power chipt

5. See Tigure 3. Place ECU on weorkbench with part number label face down and using tme pock et screwariver pry the ten lock labs that hold the unit together up slightly. Just enougr: to get the small screwdriver ungen the tabs and fimish prying the tabs straight up. Separate case, cover aside 6. See (igure 4 Find the socketed chip on the board. This chip can be Identified by e black plastic °H" shaped retaiming clip locking it into the socket and thal it is elevated higner than any s.milar chip on the board 7. See figure 5 Rernove the "H" shaped retaining clip by inserting the pocket screwariver into one of the smmall slots in the retaining clip and prying towards the other slot. The retaining clip will pop up on the side the screwdriver is inserted in, use a finger to hold that side up while you insert the screwariver in the other slot ang release the other sige. Lift retaining clip off of th# chip and set aside. 10. Remove cmip from sucket by inserting the pocket screwdriver between the cmip and the socket and prying up geatly. Py up in stages switching ends as you go until the chip is totally sase. Set stock chip aside. 11. See figure 6. Notice the stmall divot on one end of the power chip. Notice a sima ar divotl on one end of the sucket. The chip must be inserted so thal both divots are on the same side. First insert one row of pins in one side of the socket part—way. With two fingers push on the other side of tme chip until the other row of pins line up with the socket and then push down on chip and make sure that it is Inserted all the way. Cautiont BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket holes are ied with pins. 12. Reinstall retmning clip. Reinstall cover on ECU, use pliers to bend cover lock tsus back into place Install ECU in vehicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law. *Smog Legal"® in California under; ARB E.0. No. D—XXX

401331044 Juim JlSvig ovig mMo isci pusiocs rsts 193 SQv SNO1IY307 M340$ SNHVH .X. 6 _> #3A03 2115974 19v 78 6 ' 3NION3 HIMOL INHLS AINO 16¢z pup ig¢c JNOHY 5TS 1 340914 T a9iiing \ IHOYq

FIGURE 2~ l BEND UP LOCK TABS AS SHOWN

ricure «T Eoib blinhx) inibal ynn'in-nnn \\yni‘fi» pueadtcurd af even:. ‘; & s C Uf

FIGURE 5 f FIGURE 6 PRY THIS WAY UNTIL CLIP POPS UP ) TT oi 4 POCKET SCREWDRIVER—»| CO\ & $ CHiP MAKE SURE DIvOTS \L \L ‘]/ ARE ALIGNED SLOTS | SockET 1 o N S\ J ——M i~—~—i TOP VIEW SIDE VIEW

DINAN ENGINEERING PERFORMANCE CHIP INSTALLATIGN FOR MOTRONIC— 2 1984— 1986 Porsche 911 Carrera BOSCH ECU #0—261—200—080 1987—1988 Porsche 911 Carrera BOSCH ECU *0—261—200—082 Thank you for purchasing a Dinan Engineering performente chip. Many hours of ressarch and development have gone into sach program to optimze ignition and fuel gelivery curves for maximuin power. Some mechantcal sk1ll is required to perform tms operation. If you feel that you do not possess the required skill please arrange to have a qualified repair fecility do the instailation Tor you. If you encounter any difficulties dur ing this installation or if these instructions are not clear to you please call Dinan Engineering for assistance @ 415—962—941 7. T00LS REQUIRED FOR INSTALLATION: —Standard screwariver (small) —Standard screwdr iver (pocket size) ~10mm socket on 378 or 174 drive ratchet with 1" extension —Blunt nose pliers (medium) REMOVE ELECTRONIC CONTROL UNHT (ECU) FROM YEAICLE: 1. Open grivers door. Pull back carpet under drivers seet to expose ECU. 2. Remove nuts securing ECU to fioor. Lfft ECU up and out from under the seat and uriplug wiring harness from ECU. 3. Take ECU to workbanch. ON THE WORKBENCH: 4. Read Bosch part number on ECU. Should be: 0—261—200— 050 or 0—261—200—082 If your computer does not display one of these part numberss calt Dinan Enginesring @ 415—962—9417. DQ NOT install the power chipt

5. See figure 1. Place ECU on workbench with part number label face down and using the pocket screwdriver pry the ten lock tabs that hold the unit together up slightly. Just enough to get the small screwdriver under the tabs and finish prying the tabs straight up. Separate case, set cover aside. 6. See figure 2 and figure 3. Hold ECU with metal side down and the plug end facing away. Grip mounting tabs with both hands and push up on upper printed ciroult (PC) boar d whare the two plastic pedestals connect to the PC board. The object here is to separate the pedestal snap connections Cautiont DO NOT PUSH UP ON CORNERS OF PC BOARD OR BOARD WiILL FLEX AND BREAK! 7. Raise rear portion of board which was Just unsnapped and slide board awey from plug, until the board disengages from the plug housing. Flip over upper PC board so thet both PC beards are face up. 8. See figure 4. Find socketed chip on the upper board. This chip can be Identified by a sticker with a series of numbers printed on it and that it is elevated higher than any similar chip on the board. 9. Remove chip from socket by inserting the pocket screwdriver between the chip and the socket and prying up gently. Pry up in stages switching erids as you go unt1} the chip is tatally laose. Set stock chip asido. ' 10. See figure 5. Notice the small divot un one end of the power chip. Notice a similar divot on one end of the socket. The chip must be inserted so that both divots are on the same sige. First insert one row of pins in one side of the socket part—way. With two fingers push on the other side of—the chip until the other row of pins Hine up with the socket and then push down on chip. Use your other hand to support the bottem side of the PC board directly below the socket while you push down on chip to make sure that it is inserted all the way. Caution! BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket hotes are filled with pins 11. Reassemble PC boards. Reinstall cover on ECU making sure to insert the white plestic sheet first, Use pliers to bend cover lock tabs back into place. Install ECU in vehicle. This chip increases spark advance. This makes it necessary to run Supreme Unleaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and its reproduction is unlawful. Dinan Engineering will prosecute to the full extent of the law *Smog Legal"® in California under; ARB £.0. No. D—XXX

riOUunC i ~~ /.~ Benp up Lock Ttass as sHown . W

@ a FIGURE . GRIP MOUNTING TABS AND PUSH UP ON er PC Boarp. PusH UP WHERE PLASTIC PEDESTALS >.xm~ NOT ON THE CORNERS.

. ho mor aeniarmmneteets vamemevemenonpranns: urecrenmy nemosimasa~ < ¥ nigreanomemamyrscoreriermeranyut poreqincignm earmecinyrece j ies nculwpnennmemare in ud imearngevraresmissdhrccghrey ty ns n her ainicraminzec‘s. z o 6 Li > a2 o O i4 tm oc # 3 e ~4 t td 3 e in m — [¥ 5k ..R, * hue B a BEELY t 5 , n w. o == :2 w & 3 n ieww noa i f¢ ~Gnnonidy e h ig]mwonie + 44 W in R are i 3 5 Z Bd B m yerMIHM! D 6 2 ( 3 : = 3 £ p $ 0 es ; & §‘ a. oc 3 s a= 12 w & e $4 t < ~4 f m ! Bd inm & & A. a. LOWER PC BOARD—» necome—cmecR Lt oz tid 4C a. in. ireend ts i ; . —> p 1| 8 o. METAL Base

m¥ > & ® c ix weeis ous Ime 'f 7 19ho i i _ s -h___.l"' K ‘) humnszab ‘? SSE a2 i ie s > ‘Lect atesase nwfiw—zfl%mwm 7 : iF + 3 ue "=% ste: em (1 es t ns o Ne mt o HYOG NO NOTLY3O7 dIH] * JIN914

AKE SURE DIVOTS ARE ALIGNED me wtuvitn ssoote tancmt Pns

nows nvernminte n image icncematige mc 4g en uen minnimven nimngr weemm en n veveenammensions 7 a 0or sencromavemcengrormee eearmmysin wgn cn ce7 ~ DINAN ENGINEERING PERFORMANCE CHIP INSTALLATION FOR MOTRONIC—2 1988 Porsche 92457944 BOSCH ECU #*0—261—200—086 Thank you for purchasing a Dinan Engineer Ing performance chip. Many hours of research and development have gone tnto sach program to optimize iqnition and fue! delivery curves for maximum power. Some mechantcal skill is required to perform this operation. If you feel that you do not possess the required skill plaese arrange to have a qualified repair factiity do the instaliation for you. If you encounter any difficulties dur ing this installation or 1f these instructions are not clear 10 you please call Dinan Engineering for assistance @ 415—962—9417. TOOLS REQUIRED FOR INSTALLATION: ~Phthips screwariver (small) —Standard screwdriver (small) ~Standard screwdriver (packet size) —B8mm socket on 328 or 1/4 drive ratchot with 2" extension |. —Blunt nose pliers (medium} REMOVE ELECTRONIC CONTROL UNIT (ECU) FROM YERICLE: 1. Open drivers door. The ECU is located under the deshboard at the steer ing column. 2. Remove the phtiHips screws seour ing the black plastic cover which conceals the ECU. Remove the four &mm nut which secure the ECU to the chassis. 3. Let the ECU drop down and unplug the wiring harness from 1L. Take ECU to workbench, ON THE WORKBENCH: 4. Read Bosch part number on ECU. Should be: 0—261—200—086 If your computer does not display one of these part numbers call Dinan Engineer ing € 415—962—9417. DO NOT install the power chip!

dtm: wngn crvor smmmoge sgnc d onsns imenmm crgnimpe o n ranenpermermine emingrome snimmnggenemm — ww monsmercimne t commc =— mc nenvie i in anenevemme ommen ermer w cemmmmnrer 5. See figure 1. Place ECU on workbench with part number labe? face down and using the pocket screwdriver pry the ten lock tabs that hold the unit together up slightly. Just encugh to get the small screwdriver under the tabs and finish prying the tabs straight up. Separate case, set Cover aside. 6. See Tigure 2 and figure 3. Hold ECU with metal side down and the plug and facing away. Grip mounting tabs with both hands and push up on upper printed ciroutt (PC) board where the two plastic pedestals connect to the PC board. The object hare is to separate the pecestal snap connections. Cautiont DO NOT PUSH UP ON CORNERS OF PC BOARD OR BOARD WiILL FLEX AND BREAKI 7. Raise rear portion of board which was just unsnapped and slide board away from plug, until the board disengages from the plug housing. Flip over upper PC board so that both PC boards are face up. , 8. See figure 4. Find socketed chip on the upper board. This chip can be identified by a sticker with a ser tes of numbers printed on it and that 1t ts etevated higher than any simfiar chip on the bosrd. 9. Remove chip from socket by inserting the pocket screwariver between the cnip and the socket and prying up gently. Pry up in stages switching ends as you go until the chip is totally loose. Set stock chip aside. 10. See figure 5. Notice the small divot on one end of the power chip. Notice a stmtlar divat on one end of the socket. The chip must be inserted so that both divots are on the same side. First insert ong row of pins in one side of the socket part—way. With two fingers push on the other side of the chip unt1l the other row of pins line up with the socket and then push down on chip. Use your othar hand to support the bottom side of the PC board directly below the socket while you push down on chip to make sure that it is inssrted all the way. Cautiont BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket hole and that all socket holes are Aled with pins. 11. Reassemble PC boards. Reinstall cover on ECU making sure to insert the white plastic sheet first. Use pliers to bend cover lock tabs back into place. Install ECU in vehicle. « This chip Increases spark advance. This makes It necessary to run Supreme Unijeaded Fuel, 91 octane or better. The information contained on this chip is the sole property of Dinan Engineering and its reproduction is unlawful. Dinan ( Engineering will prosecute to the full extent of the law. *Smog Legal® in California under; ARB E.0. No. O—XXX

eparver wune«: uruenngs ym sw cuevns hy hm m enminany. goinere marner se certwnmem zen mpucy mm NMOHS S¥ SEVL X¥D90T7 dn. UN3Y

a ORIP MOUNTING Tars AaND push up on urper PC Boarp. PusH UP WHERE PLASTIC PEDESTALS ARE, NOT ON THE CORNERS. umt i))

dxwof NO NOoTLYJOT d4IH] _ Jangt4

AKE SURE DIVOTS ARE ALIGNED CHIp rIDUKE9 arvtriedilimencess sivicecasvmanedin ccom.contcn s

Co2 un cce cenecue ers eawecs r ind ce m mew awe kn y n may w ce cammene in evemernnme DINAN ENGINEERING PERFORMANCE CHIP INSTALLATION MOTRONIC— 3 Y¥ersion 3 1990—> 318is BOSCH ECU #0—261—200— 175 Thank you for purchasing a Dinan Engineering power chip. Many hours of research and development have gone into each program to optimize ignition and fuel delivery curves for maximum power. Some mechanical skill is required to perform this operation. if you feel that you do not possess the required skill please arrange to have a quahified repair Tacility do the installation for you. if you encounter any difficulties during this installation or if these instructions are not clear to you please call Dinan Engineering for assistance @ 415—962—9417. TOOLS REQUIRED FOR INST ALL ATION: ~Phillips screwdriver (medium) —Standard screwdriver (small) —Standard screwdriver (pocket size) ~10mm socket on 378 or 174. drive ratchet with 2" extension —*®20 "TORX" wrench/drive —Blunt nose pliers (medium) REMOVE ELECTRONIC CONTROL UNIT (ECU) FROM VEHICLE : 1. Open glove box, remove pins securing limiting straps to sides of glove box and allow glove box to open all the way. 2. Remove the fasteners securing plastic glove box roof panel. Pull this panel down and allow it to rest in the glove box. 3. Remove wiring harness from ECU by pulling on the metal latch mechanism. Loosen (do not remove} the four 10mm nuts securing the metal plate underneath the ECU. With the nuts sufficiently loose the ECU should stide out. T ake ECU to the workbench. OM THE WORKBENCH: 4. Read Bosch part number on ECU. Should be : 0—261—200—175 If your computer does not display this part nurmber call Dinan Engineering @ 415—962—9417. DO NOT install the power chip!

~~ Q e ol cce o en ce w acubcnesmnves gene anmacore 5. Place £CU on the workbench with part number label face up and remove the four #20 torx screws securing the cover of the case. 6. See figure 1. Place ECU on workbench with part number label face down and using the pocket screwdriver pry the six lock tabs that hold the unit together up slightly. Just enough to get the small screwdriver under the tabs and finish prying the tabs straight up. Separate case, set cover aside, 7. See figure 2. Find the socketed chip on the board. This chip can be identified by the plastic "H* shaped retaining clip locking it into the socket and that it is elevated higher than any similar chip on the board. 8. See figure 3. Retove the "H" shaped retaining clip by inserting the pocket screwdriver into one of the small slots in the retaining clip and prying towards the other slot. The retaining clip will pop up on the side the sorewdriver is inserted in, use a finger to hold that side up while you insert the screwdriver in the other slot and release the other side. Lift retaining clip off of the chip and set aside. 9. Remove chip from socket by inserting the pocket sorewdriver between the chip and the socket and pry ing up gently. Pry up in stages switching ends as you go until ie chip is totally loose. Set stock chip aside. 10. See figure 4. Notice the small divot on one end of the power chip. Notice a similar divot on one end of the socket. The chip must be inserted so that both divots are on the same side. First insert one row of pins in one side of the socket part—way. With two fingers push on the other side of the chip until the other row of pins line up with the socket and then push down on chip and make sure that it is inserted all the way. Caution! BE CAREFUL NOT TO BEND ANY PINS. Visually verify that all the pins are in a socket holeand that all sooket holes are filled with pins. 12. Reinstall retaining clip. Reinstall cover on ECU; use pliers to bend cover lock tabs back into place. Install the four sorews removed in step 5. Install ECU in vehicle. The 318is requires supreme unleaded fuel in the stock form. Supreme unleaded must be used with the power chip. As with the stock vehicle, if supreme is not used, engine damage may result. The information contained on this chip is the sole property of Cinan Engingering and its reproduction is unlawful. Dinan Engingering will prosecute to the full extent of the law. "Smog Legal" in California under; CARB E. 0. No. D—XXX

[\6 / E/ &

FIGURE 2 SOCKETED CHIP

IGuRE 3 FIGURE 4 |_ery This way uNTIL CLIP pops uP [Ri () TT uie . ocket screworiver—>| Y e i ) CHIP MAKE SURE DIVOTS ARE ALIGNED SockET sLots e f Vn _ TOP VIEW SIDE VIEW


Document Created: 2005-09-01 12:42:33
Document Modified: 2005-09-01 12:42:33

Previous E.O. D-176-1 | Previous E.O. D-175 | Next E.O. D-176-3 | Next E.O. D-177