Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on August 18, 2016.
As of Monday, December 30th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part Number
See PDF

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-126-41
  • Executive Order 126-41 / D126-41
  • ARB # D-126-41
  • Executive Order No: D-126-41
  • C.A.R.B. No. D-126-41
  • Resolution D-126-41
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-126-41 PDF

D-126-41 Document:

CARB_D-126-41

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—126—41 Relating to Exemptions Under Section 27156 of the California Vehicle Code General Motors, LLC Chevrolet LT4 Performance Upgrade Calibration 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—14—012; IT IS ORDERED AND RESOLVED: That the installation of the Chevrolet LT4 Performance Upgrade Calibration, manufactured and marketed by General Motors, LLC, 30003 Van Dyke Avenue, Warren, Michigan 48090, 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 2015 to 2017 model year Chevrolet Corvettes equipped with a 6.2L engine. The Chevrolet LT4 Performance Upgrade Calibration includes the following main part: ECU upgrade without user adjustments. This Executive Order is valid provided that the installation instructions for the Chevrolet LT4 Performance Upgrade Calibration will not recommend tuning the vehicle to specifications different from those of the kit manufacturer. Changes made to the design or operating conditions of the Chevrolet LT4 Performance Upgrade Calibration, as exempt by the Air Resources Board, which adversely affect the performance of the vehicle‘s pollution control system shall invalidate this Executive Order. This Executive Order shall not apply to any Chevrolet LT4 Performance Upgrade Calibration advertised, offered for sale, sold with, or installed on a new motor vehicle prior to or concurrent with transfer to an ultimate purchaser. Marketing of the Chevrolet LT4 Performance Upgrade Calibration using any identification other than that shown in this Executive Order or marketing of the Chevrolet LT4 Performance Upgrade Calibration 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 Chevrolet LT4 Performance Upgrade Calibration may have on any warranty either expressed or implied by the vehicle manufacturer.

i9. This Executive Order is granted based on submitted emissions test data generated on one test vehicle modified with the Chevrolet LT4 Performance Upgrade Calibration. Test results showed that emission levels, with the Chevrolet LT4 Performance Upgrade Calibration installed, met the applicable emission standards when tested using the Cold—Start CVS—75 Federal Test Procedure (FTP) test cycle and the Supplemental Federal Test Procedure (SFTP USO6) test cycle. Examination of the OBD II system showed that the Chevrolet LT4 Performance Upgrade Calibration did not affect OBD II system operation. Results from emissions testing conducted at the General Motor Proving Ground located in Milford, Michigan, are shown below, in grams per mile, with deterioration factors (df) applied to Cold—Start CVS—75 Federal Test Procedure and SFTP USO6 modified test results. 2015 model year 6.2L Corvette CVS—75 FTP Useful Life FTP NMOG+NOx CO HCHO Emission Level (w/ df applied) 0.036 0.8 0.001 Standards 0.160 4.2 0.004 USO6 NMOG+NOx cCO Stand Alone Useful Life Std 0.12 9.6 Device w/dfs 0.08 0.7 Test results showed that the Chevrolet LT4 Performance Upgrade Calibration installed on the vehicle did not cause exhaust emissions to exceed the applicable emission standards during the FTP and SFTP. This Executive Order is also based on the On— Board Diagnostic II (OBD II) testing conducted on the same test vehicle. The Chevrolet LT4 Performance Upgrade Calibration when installed on the test vehicle did not affect the vehicle‘s ability to perform its OBD II monitoring. 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 CHEVROLET LT4 PERFORMANCE UPGRADE CALIBRATION. GENERAL MOTORS, LLC — CHEVROLET LT4 PERFORMANCE UPGRADE CALIBRATION — D—126—41

:g. 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. rg4 ¥A Executed at El Monte, California, this /& day of August 2016. “%\7@;{%@%0/ —Annétte Hebert, Chief '\,glgnjissions Compliance, Automotive Regulations and Science Division GENERAL MOTORS, LLC — CHEVROLET LT4 PERFORMANCE UPGRADE CALIBRATION — D—126—41



Document Created: 2017-01-20 18:08:33
Document Modified: 2017-01-20 18:08:33

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