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1992 Chevrolet G20 Sportvan 5.7L Excessive Emissions, Poor Fuel Economy
this one is getting the best of me,it runs extremely rich{black smoke}at idle,during acell in neutral and slow speeds,has plenty of power at high speed,I have done all the normal stuff,now i am [...] concern is the manifold vacc and fuel press.I checked voltag...
FIX posted 9/1/2002
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Message Closed w/FIX
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14 Replies Received
14 Replies Received
Related Documents & Media | VIN | [No VIN Available] |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / tbi |
| Emissions | fed |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Always, Idle |
Trouble Codes
| 33 | map voltage high |
Message Closed w/FIX
Vehicle Data
1992 Chevrolet G20 Sportvan
| VIN | [No VIN Available] |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / tbi |
| Emissions | fed |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Always, Idle |
Trouble Codes
| 33 | map voltage high |
Video