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1987 Chevrolet V30 Custom Deluxe 7.4L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
ENGINE IS RUNNING RICH FUEL TRIM CHANGES BETWEEN 120-129 WON'T IDLE COLD PLUGS FOUL OUT . i CHECKED THE GROUNDS ON THE ENGINE AND RAN A NEW GROUND TO THE EXHAUST MANIFOLD WITH THE O2 SENSOR. RELACED THE O2 SENSOR AND MAP SENSOR. I'M AT 5000 FEET VACUUM IS NORM...
FIX posted 1/12/2007
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12 Replies Received
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Related Documents & Media | VIN | 1GCHV33N6H |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / TBI |
| Emissions | FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always, Cold |
Message Closed w/FIX
Vehicle Data
1987 Chevrolet V30 Custom Deluxe
| VIN | 1GCHV33N6H |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Standard |
| Delivery | FI / TBI |
| Emissions | FED |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always, Cold |
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