Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on March 18, 1993.
As of Sunday, June 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
1993 and older model-year passenger cars with OEM turbochargers

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-186-8
  • Executive Order 186-8 / D186-8
  • ARB # D-186-8
  • Executive Order No: D-186-8
  • C.A.R.B. No. D-186-8
  • Resolution D-186-8
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-186-8 PDF

D-186-8 Document:



                                                      (Page 1 of 3)

                                State of California
                                AIR RESOURCES BOARD

                              EXECUTIVE ORDER D—186~8
                   Relating to Exemptions Under Section 27156
                              of the Vehicle Code

                             HKS U. S. A., INC.
             HKS ELECTRONIC VALVE CONTROLLER —— EVC AND EVC II

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 HKS Electronic
Valve Controller (EVC & EVC II}, manufactured by HKS USA, Inc. of 20312
Gramercy Place,   Torrance,   California 90501,   has been found not to reduce the
effectiveness of the applicable vehicle pollution control system and,
therefore, is exempt from the prohibitions of Section 27156 of the Vehicle
Code for 1993 and older model—year OEM turbocharger equipped passenger cars.

This Executive Order is valid provided that installation instructions for
this kit will not recommend tuning the vehicle to specifications different
from those submitted by HKS USA, Inc.

Changes made to the design or operating conditions of the Electronic
Valve Controller (EVC & EVC II}, as exempt by the ARB, which adversely
affect the performance of a vehicle‘s pollution control system shall
invalidate this Executive Order.

Marketing of this Electronic Valve Controller       (EVC & EVC II)    using any
identification other than that shown in this Executive Order or marketing of
this Electronic Valve Controller (EVC & RVC I1) 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
Electronic Valve Controller (EVC & EVC II) 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 this Electronic Valve Controller (EVC & EVC II) 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 Electronic Valve Controller (EVC & EVC II) 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 Electronic


HKS USA, INC.                                        EXECUTIVE ORDER D~186—8
ELECTRONIC VALVE CONTROLLER (EVC & EVC II)           (Page 2 of 3)



Valve Controller (EVC & EVC II)} adversely affect 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 other evidence provides the ARB with reason
to suspect that the Electronic Valve Controller (EVC & EVC II) will affect
the durability of the emission control system, HKS USA, 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 RESOURCES BOARD OF
CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED
BENEFITS OF THE HKS USA, INC.‘s ELECTRONIC VALVE CONTROLLEZR (EVC & EVC II).

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 stats board for
       Ccertification 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 1  icle pollution
       control device as a certified device which, in fact, is not a certified
       device.  Any violation of this subdivision is a misGemeanor."
                                                                1


HKS USA, INC.                                         EXECUTIVE ORDER D—186—8
ELECTRONIC VALVE CONTROLLER (EVC & EVC II)            (Page 3 of 3)




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.

The Bureau of Automotive Repair will be notified by copy of this order.

Executed at El Monte,   California,   this    _/ &7 day of March,   1993




                                             Assistant Division Chief
                                             Mobile Source Division


                            State of California
                            AIR RESOURCES BOARD




EVALUATION OF HKS USA, INC.‘S HKS ELECTRONIC VALVE CONTROLLER (EVC & EVC II)
               FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE
    CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                       CALIFORNIA CODE OF REGULATIONS




                                March 1993


                            State of California
                            AIR RESOURCES BOARD




EVALUATION OF HKS USA, INC.‘S HKS ELECTRONIC VALVE CONTROLLER (EVC & EVC II)
                FOR EXEMPTION FROM THE PROHIBITIONS OF 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
                          El 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




         HkS USA,   Inc.,   of 20312 Gramercy Place,   Torrance,   California 90501 has

applied for an exemption from the prohibitions in Section 27156 of the

California Vehicle Code (VC)       for the HKS Electronic Valve Controller (EVC & EVC

II).    The HKS Electronic Valve Controller (EVC & EVC II)         is designed for

installation on 1993 and older model—year OEM turbocharger equipped passenger

cars.

        Based on the results from comparative exhaust emission tests performed

at an independent laboratory on a 1985 Ford Mustang SVO equipped with an 2.3

liter turbocharged engine,      the staff concludes that HKS USA,     Inc.‘s HKS

Electronic Valve Controller (EVC & EVC II) will not adversely affect exhaust

emission from vehicles for which an exemption is requested.

        The staff recommends that HKS USA, Inc. be granted an exemption as

requested and that Executive Order D—186—8 be issued.


                                   TABLE OF CONTENTS




                                                       Page Number




SUMMARY

CONTENTS                                                    i1

I.        INTRODUCTION

II.       CONCLUSION

III.   RECOMMENDATION

Iv.    DEVICE DESCRIPTION

v.     EVC EVALUATION AND DISCUSSION

       APPENDIX

       APPENDIX A:       CONTROL VALVE DIAGRAM

       APPENDIX B:       INSTALLATION INSTRUCTIONS




                                          i1


 EVALUATION OF HKS USA, INC.‘S HKS ELECTRONIC VALVE CONTROLLER (EVC & EVC II)
                 FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE
     CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE
                       CALIFORNIA CODE OF REGULATIONS




I.     INTRODUCTION

       HKS USA,   Inc.   of 20312 Gramercy Place, Torrance,   California 90501 has

applied for an exemption from the prohibitions in Section 27156 of the

California Vehicle Code for the HKS Electronic Valve Controller (EVC & EVC II).

The HKS Electronic Valve Controller (EVC & EVC II) is designed for installation

on 1993 and older model—year OEM turbocharger equipped passenger cars.

       HKS USA, Inc. has submitted data from comparative emission tests

conducted on a 1985 Ford Mustang SVO equipped with an 2.3 liter turbocharged

engine at Automobile Club of Southern California, Los Angeles,      California.




II.    CONCLUSTONS

       Based on the results from comparative exhaust emission tests performed

at Automobile Club of Southern California on a 1985 Ford Mustang SVO equipped

with an 2.3 liter turbocharged engine, the staff concludes that HKS USA, Inc.‘s

HKS Electronic Valve Controller (EVC & EVC II) will not adversely affect

exhaust emissions from vehicles for which an exemption is requested.




III.   RECOMMENDATION

       The staff recommends that HKS USA,      Inc. be granted an exemption for

their HKS Electronic Valve Controller (EVC & EVC II)      for installation on 1993

and older model—year OEM turbocharger equipped passenger cars.       The staff also

recommends that Executive Order D—186—8 be issued.

                                         —1—


IVv.      DEVICE DESCRIPTION

          The HKS Electronic Valve Controller (EVC & EVC II)    is designed for

installation on 1993 and older model—year OEM turbocharger equipped passenger

cars.      The HKS EVC consists of two main components:   the under hood control

valve and the cockpit mounted control module linked by a wiring harness.          The

control valve houses a multi—step solenoid valve and pressure sensor.        The

cockpit mounted control module houses a microprocessor which, utilizing the

control valve pressure sensor (port #1 — see Appendix A), samples the intake

manifold pressure.     Using this data, the microprocessor operates the control

valve‘s solenoid valve.     The solenoid regulates the pressurized air drawn (via

port #2) from the discharge plumbing of the turbocharger.        This regulated air

is discharged from port #3 to the wastegate actuator controlling the wastegate

action.     According to the manufacturer, by closely controlling the wastegate

action, the maximum boost pressure and boost response curve is optimized to

increase power for a given application within the constraints of the OEM fuel

injection system.

          The EVC & EVC II are identical with one exception:     the EVC II does not

incorporate the manual boost control and "volume" knob.        Both units have Off,

Low and High settings which,    according to the manufacturer,    allow a range of

boost levels permitting safe operation of the vehicle in less than ideal

weather as well as increased performance.




V.     ELECTRONIC VALVE CONTROLLER (EVC & BVC II) EVALUATION AND DISCUSSION

          A 1985 Ford Mustang SVO equipped with an 2.3 liter turbocharged fuel—

injected gasoline engine was used for the evaluation of the HKS Electronic

Valve Controller (EVC & EVC II).     The dynamometer inertia weight and loading

used were 3500—lbs and 8.9—hp respectively.

                                         —2—


         Comparative emissions tests conducted by Automobile Club of Southern

California for HKS USA, Inc. consisted of one Cold—Start CVS—75 emission test

in the unmodified (baseline) configuration, followed by one Cold—Start CVS—75

emission test in the modified (Electronic Valve Controller (EVC model)

installed) configuration in the manual mode with the volume set to maximum.

The Air Resources Board did not perform tests to confirm the test results

submitted by the applicant.        A summary of the test results is shown below:


                              Exhaust Emissions Test Results
                                On A 1985 Ford Mustang SVO

Test                   Exhaust Emissions (gm/mi)
Mode                   EC                   co                   Nox

Baseline               3.01                  18. 32              2.80
Device                 2.61                 18. 22               2.89
Difference             —.40                 —.10                 +. 09
% Difference           —13.25%              —.53%                +3.25%



         The differences between the device emission test results and baseline

emission test results submitted by the applicant were within the allowed limits

of .1 gm/mile HC,     1.0 gm/mile CO and .1 gm/mile NOx as specified in the

"Procedures for Exemption of Add—On and Modified Parts."        Therefore, the

installation of the HKS Electronic Valve Controller       (EVC model)    did not have an

adverse effect on exhaust emissions on the test vehicle.

         Due to the ability to manually control the maximum boost pressure, HKS

USA,   Inc.   supplies a recommended maximum boost pressure for each application.

These recommended boost pressures exceed the OEM maximum boost pressures.

According to the HKS USA, Inc., they tested various vehicles at these increased

pressure levels and found no decrease in engine durability.        The ARB did not

perform any durability testing at this time and reserves the right,          in the

future, to request further documentation of the durability effects of

                                           —3—


application of this device.

       HKS USA,   Inc.   submitted all the required information and fulfilled the

requirements for exemption.


Appendix


Appendix A


    CONTROL YALVE DIAGRAM




              _) O
@


Appendix B


                eE=lV/ZC
ELECIRONIC VALVE CONTROLLER




                 HKS
            Performance/Competition Products




                   Product:    EVC System

         Application: Most    turbocharged vehicles

  Part number: 3050XX—90000X (actuator type)
               3052XX—90000X    Cexternal wastegate   type>


 NOTICE:

This manual assumes that you have and know how to use the tools and equipment which
are necessary to safely and efficiently perform service and installation operations
on your vehicle. This manual also assumes that you are familiar with typical
automotive systems and terminology and basic service and repair procedures. DO NOT
fiempt to carry out the operations described herein unless these assumptions are
       rect.
    ays have access to a factory service manual as many of the procedures and
 specification required for the proper installation of this product will be referenced
 to the shop manual.
 To avoid the risk of      personal     injury to yourself and to others,               and to avoid the
 possibility of      damaging   your   vehicle   and   rendering      it   unsafe,    follow   the safety
 precautions contained      in the factory shop manual for the vehicle you are working on.

 INTRODUCTION:

 The    HKS EVC   (Celectronic valve controller)       provides       immediate      selection of     up   to
 four preset manifold boost pressure selections or variable manifold boost pressure
 control from within the vehicle cockpit.
 The HKS EVC incorporates two main components,              the      control module      and   the   control
 valve, which are linked only by electrical connections.                    No hoses are routed through
 the firewall and into the cockpit.

 USER NOTES:
 Before    increasing the boost pressure on your vehicle,                  read through    the entire manual
 and familiarize yourself with the terms used herein. Pay special attention to the
 following precautions.

 1.    The HKS EVC System is available       in two styles for the following applications:
       Be certain to choose the right unit for your application.

 Swing Valve Type:      For integral wastegates (most OEM style wastegates)                    with    single
                        pressure port actuators.

 Popet Vailve Type:     For remote, dual pressure port wastegates (racing type) and                            for
                        integeral wastegates with dual pressure port actuators (HKS                            turbo
                        system).

'The purpose of the HKS EVC is to increase the boost pressure accurately and
 eliably, but most factory turbocharged vehicles also have a secondary boost limiting
 system to control the boost pressure in case of wastegate or wastegate actuator failure.
 Due to this secondary boost control system, the HKS EVC will not be able to raise the
 boost pressure above the point at which the secondary boost control is activated.
 3. When using the HKS EVC, know the limits of your vehicle and engine. Pay special
 attention to the following.
 * Increasing the boost pressure may cause detonation (knocking, pinging>). Detonation
 can cause severe engine damage.

 4. Increasing the boost pressure (intake air volume) may require additional fuel
 volume to the engine. Make sure the engine has the correct air/fuel ratio and the
 correct ignition timing to prevent detonation.

 5.    The HKS EVC unit will not lower       the boost pressure below the original setting.

 6.    The HKS EVC   is a very precise electronic component.                The unit should be handled
 with extreme care to avoid possible damage. The HKS EVC components must not be
 exposed to extreme heat, water or dust. Make sure the unit is wired properly before
 operation.
 TEMPERATURE RANGE: CONTROL UNIT           —25 Deg. C to 77 Deg. C ¢—13 Deg. F to 170 Deg. F)
                    VALVE UNIT             —25 Deg. C to 100 Deg. C (—13 Deg. F to 212 Deg. F)

 7.    The HKS EVC cannot control boost pressure above the maximum efficiency point of
 the    turbocharger.   Additionaly     the HKS EVC will       not    be   able   to compensate      boost
 pressure loss due to turbocharger size.

 8. Increasing the boost pressure will also increase the intake air temperature.
 IFf the intake air temperature is above 210 F <100 C),  performance increases may                                     be
 minimal and detonation may occur.

  . Increasing the boost pressure will shorten the combustion process. Due                            to   a
  hortened combustion process, the ignition timing may require retarding.

 10. Use 92 or higher octane fuel.         The use of 92 or higher octane fuel may reduce the
 possibility of detonation.

 11. DO NOT rely on the factory boost gauge or the bar graph boost gauge on the                                 HKS EVC
 when adjusting the maximum boost pressure. Install an accurate auxillary boost                                 gauge
 to moniter manifold boost pressure levels.

                                                         — 1   —


4. Mount tne EVC controi vaive insige                                 the engine compartment away i1 um eaciwine nea«
and water. The EVC control valve must                                 be mounted with the fittings pointed straignt
up .

5.     Connect       the control module wire                   harness          to    the    control       valve wire         harness.

6.     The    red wire must      be    connected               to source         that       has    12    volts with       the    ignition   key
on.     A suggested source            is the positive terminal on                             the       ignition coil.          For venicles
 quipped with the HKS             Twin       Power         ignition            system,       connect       the    EVC   red wire     to   the
 win Power rea wire.

7. Attach the black wire to chassis ground. Failure                                               to ground the         EVC     properly will
result in improper EVC operation or possible damage                                               to the unit.



EVC HOSE CONNECTIONS

Refer     to    tne   giagram    below       for    thne       Correct         hose    layout       ame    commections.


Use     the    4mm silicone      nose    for       port        1.
Use    the     4mm    rupper   nose    for    ports        2    ana    3   requiring          4mm       hose.
Use    the émm silicone hose             for ports 2 ana                   3    requiring 6mm nose.
Use    the &mm silicone nose             for ports 2 and                   3    requiring mm nose.

SWING VALVE TYPE:

Port     1.    Connect to an uninterupted intake manifolg pressure source, after the throttle
               valve, using a piece of 4mm nose. The hose should be as short as possible and
               not exceed 1 meter.            DO NOT comnect to the line tnat operates                                    the     fuel pressure
               regulator.

Port 2.        Connect to a source of pressurized air                                 (turbocharger compressor or                     L
               intake    air   pipe)    before        the       throttle         valve.       This       line    should   be as     snort as
               possible and must mot exceed i meter.

Port 3.        Connect to the port on the wastegate actuator.
               This line snould be as short as possible and not exceed                                             1 meter.




                                                     TURBOCHARGER




                                                                                      INSTALL
                                                                                      FILTER WITHIN
                                                                                      100M OF PORT 1


         POPET VALVE TYPE:

         Port        1. Connect to anm unminterupted intake manifold pressure source after the throttle
                        valve.  This line shnould be as short as possible and not exceed ! meter in
                           lengthn.      DO NOT       commect      to    the    line       that    operates          the    fuel       pressure       requlator.

         Port        2.    Connect to a source of pressurized air (turbocharger compressor or
                           intake air pipe) before tne throttle valve. Use a provided tee fit:ring
                           to connect a pressure line to the secondary port on the wastegate actuator.
                           This    line    should       be    as   short       as    possible and not exceed                      !    meter.

         Port 3. Connect to the primary port on tne wastegate actuator.
    i                      This    lime    should       be    as   short       as    possible           and   not    exceed       |    meter




        WASTEGATE                mm                                                                                                                           11
                                                                                                                                                             nink
        aActuator~—|{....—=~                                                                                                                                  U mstacc
                                                                                                                                                             P—AM
                                                                                                                                                             >>~FILTER WITHIN
                                                                                                                                                                 10cm OF PORT L




         EVC OPERATION

         1.    Reconnect           the    battery.       Reprogram             the    clock       ana    the       radio.

         2.    With        the    ignition       switch       off,       the    EVC    should       not       light      up.

         3.    Recheck           the hose layout.

         4. Start the engine                    and    allow       it    to    reach       operating          temperature.            Check     for    smooth
         engine ialing.
         If the venicle does                    not    idle    smoothly,             check    for       vacuum leaks.

         5. With the engine on, the EVC should display                                            red    light with            the     power    button        "on"
         and green light with the power button "off".

         6.    Turn        the    power    button       "off".          Test    orive       the    venicle          under      full     load    in    3rao    gear
         and monitor the boost pressure. The boost pressure should be at the level                                                                    it was
         before           the EVC was       installed.             If    the    boost pressure                is    above      the     original       level,
         refer        to trouble shooting section.

i        7.    Activate the manual button. Increase the boost pressure, without detonation,
        _up    to the final level by adjusting the volume knob. Test drive the vehicie under                                                                        full
i        load in $rd gear making sure the EVC is functioning properiy. If the boost pressure
|        is not above the original level refer to the trouble shooting section.

        ‘The boost pressure levels                             for       the "low" and             "high" moges are adjusted on the back
               el.        Select    the    "low"       button       and       using    a    small       jewlers          screwdriver,          adjust        the
              0 w"    boost       level    to    the    desired          position.          Test    drive          the    venicle       after    every
         adjustment              while    noting       the maximum boost                   pressure       reached.          All       test   ariving must            be
         done under              full load and          in 3rd gear.             Perform the same adjustment procedure for the
         "high" button. Always adjust the boost pressure below the detonation cccurrence
         point.

         9.    Affix the octane warning sticker                                to a visible             location.

                                                                                              — 3 —


 ie.    ane    auursrun     ui        an sabuues        yue   sumpuorucuss meser             ge   wavsy   c sxvaimencues        cu murs ur
engine conditions.               A severe lean condition will result                              in a very high          temperature and
an over        rich   condition will                 result   in a   very   low        temperature.

13. Mount the control unit and harness away from high power two way radios, mobile
   ~nes and their respective antenna cables. Malfunction of EVC unit may result.

EVC CONTROL MODULE FEATURES:




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                      ©
1.     POWER      SWITCH
      OFF position:        The control valve will allow maximum pressure to reach the wastegate
       resulting in original—pressure levels.
      ON    position:      Boost          pressure will       be modified      according            to    the    high,        low or manual
       switch selected on the control module.

2.     LOW MODE SWITCH
       Selection of the low mode switch will adjust the maximum boost pressure                                                       according
       to the position of the adjustable low mode tuning switch on the back of                                                       the
       control module. Low mode selection will permit an increase of maximum boost
       pressure up to approximately 50% over the original boost pressure level.

3.     HIGH MODE SWITCH
       Selection of the high mode                     switch will     adjust           the maximum boost               pressure       according
       to   the   position       of       the   adjustable     high   mode    tuning          switch      on     the    back    of    the
       control module. High mode selection will permit an increase in boost pressure up
       to approximately 100% over the original boost pressure level.

«.    MANUAL MODE SWITCH
       election of the manual mode                      switch will adjust the maximum boost pressure
       ccording to the position of                      the adjacent adjustable manual mode control knmob                                     (S).

5.    MANUAL MODE CONTROL                 KNOS
       Use of the manual mode offers maximum boost pressure adjustablility up to
       approximately 1§50% over the original boost pressure level. when the manual mode
       switch (4) is selected, the manual mode control knob can be adjusted to increase
       the maximum boost pressure level as desired. Once set, the knob can be easily
       recessed to be flush with the face of the control module until it is needed again.
       NOTE: The EVC can only increase the boost pressure within the turbochargers
       capacity                   —

6.    BOOST LEVEL BAR GRAPH
      The EVC control module face also incorporates a                                  small      LED bar      graph     to    indicate
      boost pressure between 7 psi and 21.5 psi.

7.    WIRE HARNESS CONNECTION TO EVC CONTROL VALVE

8.     ACCESORY HARNESS PLUG                CNOT USED)

9.    LOW MODE ADJUSTMENT
      Used to adjust the LOW MODE                     boost   pressure      that       is   activated       by    the    LOW MODE
       button on the front of                   the EVC.

10.    HIGH MODE ADJUSTMENT
       Used to adjust the HIGH MODE                      boost pressure       that          is activated         by    the HIGH MODE
        button on the front of the EVC.                                                                                                              |1
                                                                                                                                                       (|
EVC CONTROL VALVEvFEATURES
                                                                                                                                                      |
                                                                                                                                                      i
                                                                                                                                                      |

                                                                                                                                                     }


    1. MANIFOLD PRESSURE SENSOR PORT
         The manifold pressure sensor port is attached to an uninterrupted intake manifold
         pressure source. This manifold pressure‘signal is utilized by the EVC control
         module to make corrections in wastgate valve opening lift and duration to maintain
         accurate manifold pressure levels according to the selections on the control
         module.

          ONTROL VALVE PRESSURE INLET PORT
         Pressurized air, drawn from the compressor housing or the intake air pipe, is routed
         through the control valve pressure iniet port prior to being modified (by the
         sclencid valve housed within this chamber> according to the selected control
         module setting.

    3.   CONTROL VALVE PRESSURE OUTLET PORT
         From the control valve pressure outlet port,                             constantly modified              pressurized         air
         recieved by the control valve pressure inlet port is routed to the wastegate
         actuator. This accurate,                aven pressure maintains accurate wastegate action resulting
         in stable maximum boost              levels     in    any gear       and almost       any    elevation or atmospheric
         condition.

    4.   BLEED OFF PORT
         Control valve pressure inlet port #2 will recieve the pressurized air from the
         turbocharger or intake air pipe.  The pressurized air is modified and excess air
         is bleed off through the hole. When mounting the valve unit, make sure the hole is
         not plugged and that it is pointing down.


    INSTALLATION PROCEDURES
    Before installing this product on your vehnicle,                                read through the entire manual and
    familiarize         yourself     with     the   terms      and   procedures         used   herein.       If    the    installation
    procedures         are   not   clear    to    the   installer      or     the    installer       has    questions,        please     call
    HKS USA for         assistance,        but   please       have a   thorough         knowledge      of    the vehicle         you    are
    working on.

    1.   Remove    the       negative   (—>      terminal      from the       battery.     Memory      loss       on    the   clock    and
    the radio will result.




i

|
i
    2.   Install   the EVC control module                inside the vehicle. Mount the unit using either 2
    sided    tape or     the mounting         bracket       included        in.   the   kit.   Make   sure        the    control
    moaule    is mounted away from direct sunlight and heater ducts.

    3. Check the insige hose diameter of the wastegate actuator line.
    If the inside hose Giameter does not match fittings 2 and 3, replace                                                them with     the
    correct fittings supplied in the kit.
                                        _1
                                         1
                   I
         57




                   1
                   1


SYMPTOM:          BOOST PRESSURE WILL NOT INCREASE

CHECK :
1. All       selections on           the       EVC are adjusted properly.
   \Make sure all hose connections are performed correctly.
5. Make sure the serial numbers match on the EVC control mogule and the
    EVC control valve.




SYMPTOM: EVC CONTROL MODULE WILL NOT ILLUMINATE

CHECK :
1. Make sure the black wire is properiy grounded.
2. Make sure the red wire has 12 volts with the ignition key on.
3.    Make    sure the harness connectors are                          securely       locked,    and   that   the wires
      are not pinched.




SYMPTOM: NO CONTROL OF MAXIMUM BOOST PRESSURE

CHECK :
1. Make sure the proper EVC unit for the application                                       is being useu.
2. Possible misadjustment of the volume knob.
3. Hose connections are not leaking and hose layout is correct.
4. Make sure the serial numbers matcn on the EVC control mogule
   and the EVC control valve.




HKS PERFORMANCE PARTS NOTICE

This      part     has    been designed               and   is    intended        for OFF—HIGHWAY APPLICATION ONLY.
‘s4eral       and    many         State    laws       prohnibit        the    removal,     modification        or   rendering
     Lperable of          any device            or    element of          design affecting         the vehicle emission or
safety in a vehicle used on public highways.  Violation of such laws may subject                                                              the
  ner or user to a fine or penalty.  Installation of this product may void the
     Ttranty coverage,              if    any,       on your      vehicle.         Vehicles modified ‘by            the use of
performance             products         may    no    longer      be   lawfully       used   on   public      highways.


HKS USA,          INC.    LIMITED WARRANTY

Inspect the conmtents of this package prior to installation. HKS                                                    USA, Inc. warrants
this product prior to the point of installation, against defects                                                    in materials and
workmanship.              NO WARRANTY WILL                  82 HONORED AFTER THE                PRODUCT HAS BEEN INSTALLED ON THE
VEHICLE.   HKS‘s sole obligation under this warranty shall be limited to repair,
replacement— or credit, at HKS‘s option,. provided, however, that this warranty shall
apply only if HKS‘s examination of the returned product discloses a manufacturing
defect.   This warranty extends only to the original retail purchaser of the product.
IN    NO    EVENT       SHALL      HKS    USA,       INC.    OR    ANY    HKS     DEALER   OR    DISTRIBUTOR,        BE   LIABLE   FOR     ANY
LOSS, INCONVENIENCE OR DAMAGE, WHETHER DIRECT, TNCIDENTAL, CONSEQUENTIAL or
OTHERWISE, RESULTING FROM BREACH OF ANY EXPRESS OR IMPLIED WARRANTY OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE, WITH RESPECT TO ANY
HKS PRODUCT, EXCEPT AS EXPRESSLY SET FORTH HEREIN.   NO ACTION FOR BREACH OF IMPLIED
WARRANTY OR MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE, MAY SE
COMMENCED AFTER THE END OFf THE PERIOD OF THE EXPRESS WARRANTY SET FORTH ABOVE.
Some States do not allow limitations on how long an implied warranty lasts, so the
above limitations may not apply to you.  Some States do not allow the exclusion                                                            .or
limitation of incidental or consequential damages, so the above limitation or
exclusion may not                  apply       to you.
When making a claim under this warranty, attach to the product your name, address,
telephone number, a description of the problem, and proof of date of retail purchase
"invoice copy).
   ‘urn the product, freight charges prepaid, to the HKS dealer from whom the product
was purchased, or in the event the product was purchased directly from HKS, to HKS
     A,    Inc.    at    the address            shown       below.           This warranty does         not    include     the cost      of
 kmoval       or    reinstallation of the product, and does not apply if the product has                                                   been
damaged       by    accident, abuse, misuse or misapplication, or as a result of service                                                   or
modification             by   a    party       other    tham       HKS    USA,     Inc.    No    person   or   representative         is
authorized to extend any warranties, on behalf of HKS, other than the warranty
expressed herein.  This warranty gives you specific legal rights and you may also
have      other     rights         which       vary    from       State      to   State.

                                                                              — 6 —


a
|
                       HKS]
                   Performance/Competitio
                                         n Products




                                                                            00
                                  PL , To rr an cs , ca soso1, (213) 328—81
                       2 Gramercy
    HKS USA, INC. 2031



Document Created: 2005-09-01 12:44:53
Document Modified: 2005-09-01 12:44:53

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