Electrical and Ignition

Subject: Engine Miss/Poor Driveability Symptoms (Install Opti-Spark (ABITS) Distributor Assembly Service Kit)Model and Year:1994-96 Buick Roadmaster1994-96 Cadillac Fleetwood1992-96 Chevrolet Corvette1993-97 Chevrolet Camaro1994-96 Chevrolet... Read More

Source:  Corvette ABS/ASR Operation and Diagnosis, STG Manual 13003.02-1Page:  4-5, 4-6Copyright: 1991, General Motors Corporation Code-Based Diagnosis   CodeDescriptionDisable 21 RF Wheel Speed Sensor Fault ABS/ASR 23 RF Wheel... Read More

Code #12:  Normal No Codes.Code #13:  Left Oxygen Sensor Circuit.Code #14:  Coolant Temperature Sensor Circuit High.Code #15:  Coolant Temperature Sensor Circuit Low.Code #16:  Opti-Spark Ignition Timing System.( Low Pulse... Read More

Subject: INFORMATION/INSTALLATION OF UNDERHOOD/COURTESY LAMP FUSE Model and Year: 1991 CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 91-116-8C - (11/14/1990) TO: ALL CHEVROLET DEALERS The underhood lamp fuse on the 1991 Y... Read More

Subject: DELAYED ACCESSORY BUS (DAB) SERVICE INFORMATION Model and Year:1991 CORVETTESource: Chevrolet Service BulletinBulletin Number: 91-115-8B - (01/15/1991) The 1991 Corvette is equipped with a Delayed Accessory Bus (DAB) which allows operation... Read More

Subject: Starter Inoperative/Clicks/No Start Model and Year: 1991-92 Corvette with Automatic Transmission Source: Chevrolet Service Bulletin Bulletin Number: 92-322-6D Condition: The starter may not operate (no sound), or may click ... Read More

Subject: S.I.R. SYSTEM DIAG. ENERGY RESERVE MODULE EXCHANGEModel and Year:1990 CAMARO, METRO (CONVERTIBLE ONLY), STORM 1991-92 CORSICA, BERETTA, CAMARO, CORVETTE, METRO (CONVERTIBLE ONLY), STORM AND CAPRICESource: Chevrolet Service BulletinBulletin... Read More

Subject: SERV MANUAL UPDATE-SEC.6E3 DRIVEABILITY AND EMISSIONS 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... Read More

Subject: SERVICE MANUAL UPDATE-SEC. 6D4 SPARK PLUG CODING CHART Model and Year: 1990 CORVETTESource: Chevrolet Service BulletinBulletin Number: 90-253-6D - (06/26/1990)The Spark Plug Coding Chart shown in Figure 2, Page 6D4-3, in Section 6D4 ... Read More

Subject: TECH 1 REVISED ODOMETER RECALIBRATION PROCEDURE Model and Year: 1990 CorvetteSource: Chevrolet Service BulletinBulletin Number: 90-373-8C - (11/21/1990)TO: ALL CHEVROLET DEALERSTHIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO.... Read More