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1993 Chevrolet C1500 Cheyenne 4.3L Excessive Emissions, Poor Fuel Economy
came in for failed emmission test check basics replaced spark plugs checked O2 sensor operation found that O2 voltage was always at .45V and the system was always in open loop when disconnecting O2 sensor the voltage would stay at .45V when grounding O2 signal...
FIX posted 7/12/2004
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Message Closed w/FIX
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4 Replies Received
Related Documents & Media | VIN | 1GCDC14Z5P |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / tbi |
| Emissions | obd 1 |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1993 Chevrolet C1500 Cheyenne
| VIN | 1GCDC14Z5P |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / tbi |
| Emissions | obd 1 |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Always |
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