Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1992LUMINA APV V6-3800 3.8LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSENGINE CONTROLS - MANUAL UPDATE REVISED DTC 42 CHART
1992 Chevrolet Lumina APV V6-3800 3.8L
Engine Controls - Manual Update Revised DTC 42 Chart
1992 Chevrolet Lumina APV V6-3800 3.8LSECTION Engine Controls - Manual Update Revised DTC 42 Chart
Group Ref.: Engine Fuel & Emission
Bulletin No.: 316516
Date: January, 1994:
SERVICE MANUAL UPDATE
SUBJECT:
SECTION 6E3 - DRIVEABILITY AND EMISSIONS
MODELS:
1992 BUICK PARK AVENUE, LESABRE, RIVIERA
1992 CHEVROLET LUMINA APV
1992 OLDSMOBILE NINETY EIGHT, EIGHTY EIGHT, TORONADO, TROFEO, SILHOUETTE
1992 PONTIAC BONNEVILLE, TRANS SPORT
WITH 3800 ENGINE (VINS L AND 1)
This bulletin updates the code 42 Diagnostic Chart in Service Manual Section 6E3, "Driveability and Emissions". The revised diagnostic chart includes the correct terminal location for bypass CKT 424 at the PCM.
Bulletin No.: 316516
Date: January, 1994:
SERVICE MANUAL UPDATE
SUBJECT:
SECTION 6E3 - DRIVEABILITY AND EMISSIONS
MODELS:
1992 BUICK PARK AVENUE, LESABRE, RIVIERA
1992 CHEVROLET LUMINA APV
1992 OLDSMOBILE NINETY EIGHT, EIGHTY EIGHT, TORONADO, TROFEO, SILHOUETTE
1992 PONTIAC BONNEVILLE, TRANS SPORT
WITH 3800 ENGINE (VINS L AND 1)
This bulletin updates the code 42 Diagnostic Chart in Service Manual Section 6E3, "Driveability and Emissions". The revised diagnostic chart includes the correct terminal location for bypass CKT 424 at the PCM.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.