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1990 Corvette: Service Manual Update: Sec. 6E3 Driveability and Emissions Revised Code 34 Chart

Model and Year: 1990 CORVETTE WITH 5.7L L98 (VIN CODE 8) ENGINE
Source: Chevrolet Service Bulletin
Bulletin Number: 90-350-6E - (09/13/1990)

The attached Code 34 diagnostic chart replaces the diagnostic chart found in DRIVEABILITY AND EMISSIONS (SECTION 6E3) on page 6E3-A-47 of the 1990 "Y" 5.7L L98 (VIN 8) Corvette Service Manual.


General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.


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