Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on July 21, 2008.
As of Sunday, August 25th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsModification
1972 to 1993 model year American Motors (AMC) vehicles equipped with a carbureted 304, 360, or 401 cubic inch displacement engine.The Throttle Body Fuel Injection Kit, Model No. JP-V8, includes the following main components: Two barrel General Motors (GM) throttlebody with integral throttle position sensor and idle air controller, Open Element Air Cleaner, Electronic Control Module (ECM GM P/N 1227747), wiring harness, MAP sensor, engine coolant sensor, heated oxygen sensor, electronic fuel pump, fuel filter, fuel pump relay, and vehicle speed sensor. Ignition timing is set at 6-8 degrees BTDC at idle. No changes are made to the stock carbon canister except for the vacuum line that was connected to the carburetor float bowl vent; it is plugged at the canister. The new heated oxygen sensor is installed in the stock location on vehicles currently equipped with an oxygen sensor. On vehicles, which do not have an oxygen sensor, the sensor must be placed 3 inches down stream of the exhaust manifold flange. The installation of the kit requires the removal of the following components that are located within the engine compartment: Air cleaner assembly with heat stove, idle solenoid vacuum line, transmission controlled spark solenoid, distributor CTO vacuum control, carburetor/throttle body, fuel pump, ECM, oxygen sensor, air injection system (air tubes plugged), and other related vacuum valves and lines.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-452-2
  • Executive Order 452-2 / D452-2
  • ARB # D-452-2
  • Executive Order No: D-452-2
  • C.A.R.B. No. D-452-2
  • Resolution D-452-2
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-452-2 PDF

D-452-2 Document:



                                   State of California
                               AIR RESOURCES BOARD

                             EXECUTIVE ORDER D—452—2

                      Relating to Exemptions Under Section 27156
                                 of the California Vehicle Code

                           Howell Engine Developments, Inc.
                             Throttle Body Fuel Injection Kit

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—02—003;

IT IS ORDERED AND RESOLVED: That the installation of the Throttle Body Fuel
Injection Kit, manufactured and marketed by Howell Engine Developments, Inc.,
6201 Industrial Way, Marine City, Michigan 48039, has been found not to reduce the
effectiveness of the applicable vehicle pollution control systems and, therefore, is
exempt from the prohibitions of Section 27156 of the Vehicle Code for the 1972 to 1993
model year American Motors (AMC) vehicles equipped with a carbureted 304, 360, or
401 cubic inch displacement engine.

The Throttle Body Fuel Injection Kit, Model No. JP—V8, includes the following main
components: Two barret General Motors (GM) throttlebody with integral throttle position
sensor and idle air controller, Open Element Air Cleaner, Electronic Control Module
(ECM GM P/N 1227747), wiring harness, MAP sensor, engine coolant sensor, heated
oxygen sensor, electronic fuel pump, fuel filter, fuel pump relay, and vehicle speed
sensor. Ignition timing is set at 6—8 degrees BTDC at idle. No changes are made to the
stock carbon canister except for the vacuum line that was connected to the carburetor
float bow! vent; it is plugged at the canister. The new heated oxygen sensor is installed
in the stock location on vehicles currently equipped with an oxygen sensor. On
vehicles, which do not have an oxygen sensor, the sensor must be placed 3 inches
down stream of the exhaust manifold flange.

The installation of the kit requires the removal of the following components that are
located within the engine compartment: Air cleaner assembly with heat stove, idle
solenoid vacuum line, transmission controlled spark solenoid, distributor CTO vacuum
control, carburetor/throttle body, fuel pump, ECM, oxygen sensor, air injection system
(gir tubes plugged), and other related vacuum valves and lines.

This Executive Order is valid provided that the installation instructions for the Throttle
Body Fuel Injection Kit 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 Throttle Body Fuel Injection
Kit, 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 Throttle Body Fuel Injection Kit using any identification other than that
shown in this Executive Order or marketing of the Throttle Body Fuel Injection Kit for an
application other than those listed in this Executive Order shall be prohibited unless
prior approval is obtained from the Air Resources Board.

This Executive Order does not constitute any opinion as to the effect the use of the
Throttle Body Fuel Injection Kit may have on any warranty either expressed or implied
by the vehicle manufacturer.

This Executive Order is granted based on prior evaluation, which determined that
Throttle Body Fuel Injection Kit did not cause an adverse effect on emissions of AMC
vehicles with 4.2L engines (D—452). The same effect on emissions is expected from use
of the Throttle Body Fuel Injection Kit on the vehicles listed in this Executive Order.

The Air Resources Board 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 ANY CLAIMS OF THE APPLICANT CONCERNING
ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF THE THROTTLE
BODY FUEL INJECTION KIT .

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.

Executed at El Monte, California, this     2 f       day of July, 2008




                                 Annette Herbert, Chief
                                 Mobile Source Operations Division


HOWELL ENGINE DEVELOPMENTS, INC. — THROTTLE BODY FUEL INJECTION KIT — D—452—2



Document Created: 2008-07-23 13:25:32
Document Modified: 2008-07-23 13:25:32

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