Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on December 27, 2000.
As of Saturday, August 24th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
PowerMax, PowerMax 2, & PowerMax1998 ?¢ and 1999 Dodge Ram Trucks equipped with the 5.9L ISB Cummins Turbo Diesel engineThe PowerMax Computers includes the following main parts: PowerMax Control Computer, boost altering bleed orifice or spring, and wiring harnesses. The PowerMax Computer is mounted under the vehicle's dashboard and has no user adjustments except for an on-off switch. Engine performance modifications include increasing the fuel delivery and modifying the turbo wastegate during boost conditions. An increase in fuel delivery is achieved by an increase in the fuel pulse width during high loads and wide open throttle conditions. The following is the maximum increase in fuel pulse width with the corresponding Powermax model: 20% on the PowerMax, 30% on the PowerMax 2, and 50% on the PowerMax 3.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-503
  • Executive Order 503 / D503
  • ARB # D-503
  • Executive Order No: D-503
  • C.A.R.B. No. D-503
  • Resolution D-503
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-503 PDF

D-503 Document:



                                                                         (Page 1 of 3)


                                      State of California
                                  AIR RESOURCES BOARD



                                  EXECUTIVE ORDER D—503
                         Relating to Exemptions Under Section 27156
                                      of the Vehicle Code


                                  TST PRODUCTS, INC.
                                 POWERMAX COMPUTERS
                          (PowerMax, PowerMax 2, & PowerMax 3)



Pursuant to the authority vested in the Air Resources Board by Section 27156 of the Vehicle
Code; and

Pursuant to the authority vested in the undersigned by Section 39515 and Section 39516 of
the Health and Safety Code and Executive Order G—45—9;                             .

IT IS ORDERED AND RESOLVED: That the installation of the PowerMax Computers
(PowerMax, PowerMax 2, & PowerMax 3), marketed by TST Products, Inc., 268 N. Country
Club Road, Columbus, Indiana 47202 have been found not to reduce the effectiveness of the
applicable vehicle pollution control system and, therefore, are exempt from the prohibitions of
Section 27156 of the Vehicle Code for 1998 % and 1999 Dodge Ram Trucks equipped with
the 5.9L ISB Cummins Turbo Diesel engine.                                  |

The PowerMax Computers includes the following main parts: PowerMax Control Computer,
boost altering bleed orifice or spring, and wiring harnesses. The PowerMax Computer is
mounted under the vehicle‘s dashboard and has no user adjustments except for an on—off
switch. Engine performance modifications include increasing the fuel delivery and modifying
the turbo wastegate during boost conditions. An increase in fuel delivery is achieved by an
increase in the fuel pulse width during high loads and wide open throttle conditions. The
following is the maximum increase in fuel pulse width with the corresponding Powermax
model: 20% on the PowerMax, 30% on the PowerMax 2, and 50% on the PowerMax 3.

This Executive Order is valid provided the installation instructions for the PowerMax
Computers will not recommend tuning the vehicle to specifications different from those of the
vehicle manufacturer.

This Executive Order shall not apply to any PowerMax Computers advertised, offered for
sale, sold with, or installed on a motor vehicle prior to or concurrent with transfer to an
ultimate purchaser.


TST Products, Inc.                                                Executive Order D—503
PowerMax Computers                                                (Page 2 of 3)




Changes made to the design or operating conditions of the PowerMax Computers, as
exempt by the Air Resources Board, which adversely affect the performance of the vehicle‘s
pollution control system shall invalidate this Executive Order.

Marketing of the PowerMax Computers using any identification other than that shown in this
Executive Order or marketing of the PowerMax Computers 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 the PowerMax Computers shall not be construed as exemption to sell, offer for
sale, or advertise any component of the kit as an individual device.

This Executive Order does not constitute any opinion as to the effect the use of the
PowerMax Computers may have on any warranty either expressed or implied by the vehicle
manufacturer.

This Executive Order is granted based on submitted emissions test data which showed that
the worst case kit, PowerMax 3, did not adversely affect tailpipe emissions during
comparative Cold Start 505 Federal Test Procedure.

                  HC       CO      NOx        PM                  Opacity
Stock             0.11     1.7     8.3       0.088                10.4%
PowerMax 3        0.09      1.7    8.8       0.069                10.0%
Difference       —0.02     0.0     0.5       —0.059
% Change         —20%      0.0%     6%         —22%

Test results showed that tailpipe emissions with the PowerMax 3 installed on the vehicle did
not cause exhaust emissions to exceed the baseline emissions by more than the allowed
limits of 10 percent or 0.1 grams per mile on hydrocarbon (HC) and oxides of nitrogen (NOx),
15 percent or 1.0 grams per mile carbon monoxide (CO), and 15 percent or 0.03 grams per
mile on particulate matter (PM) as specified in the "Procedures for Exemption of Add—On and
Modified Parts".

This Executive Order is also based on On Board Diagnostic II (OBD I1) testing conducted on
the same vehicle. Test data showed that the PowerMax 3 when installed on the vehicle did
not affect the vehicle‘s ability to perform its OBD II monitoring.

However, the ARB finds that reasonable grounds exist to believe that use of the TST
Products, Inc.‘s PowerMax Computers 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 PowerMax Computers 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


TST Products, Inc.                                         '    Executive Order D—503
PowerMax Computers           —                                  (Page 3 of 3)




results or other evidence provides the ARB with reason to suspect that the PowerMax
Computers will affect the durability of the emission control systems, TST Products, 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 Execiutive
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
RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING
ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF TST PRODUCTS, INC.‘S
POWERMAX COMPUTERS.

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.

Violation of any of the above conditions shall be grounds for revocation of this order. The
order may be revoked only after a ten—day written notice of intention to revoke the order, in
which period the holder of the order may request in writing a hearing to contest the proposed
revocation. If a hearing is requested, it shall be held within ten days of receipt of the request
and the order may not be revoked until a determination is made after the hearing that
grounds for revocation exist.
                                               r.   L—
Executed at El Monte, California, this   522    day of   December 2000.




                                      . B. Suntmerfield, Chie
                                    Mobile Source Operations Division



Document Created: 2005-09-01 12:40:28
Document Modified: 2005-09-01 12:40:28

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