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1997 Chevrolet C1500 4.3L Poor Idle Quality, Misfire, MIL Lamp on
Engine misses and MIL light on continuously. Two codes: missfire #5 cylinder and lean O2 sensor. Plug stays dry. I think we are not getting fuel to #5 cylinder - is GM having problems with the Vortec injector assemblies and how do I test them. GM techs ple...
FIX posted 1/12/1999
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| VIN | 1GCEC19W5V |
| Engine | 4.3 L / 6 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always |
| Misc. | Vortec Engine |
Trouble Codes
| P0142 | Heated Oxygen Sensor (Bank 1 Sensor 3) Circuit Malfunction |
| P0305 | Cylinder 5 Misfire Detected |
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Vehicle Data
1997 Chevrolet C1500
| VIN | 1GCEC19W5V |
| Engine | 4.3 L / 6 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Always |
| Misc. | Vortec Engine |
Trouble Codes
| P0142 | Heated Oxygen Sensor (Bank 1 Sensor 3) Circuit Malfunction |
| P0305 | Cylinder 5 Misfire Detected |
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