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1991 Chevrolet G20 Sportvan 5.7L Excessive Emissions, No power,Failed Smog
not sure if fuel pressure is suppose to be 11 psi at idle and on heavy load seems real low foot on brake fuel throttle/also exhaust pressure was high/and temp wasnt right im thinking fuel pump/cat its also got a good snap throttle rpm wise but on scanner t...
FIX posted 4/10/2022
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Related Documents & Media | VIN | 1GBEG25K3M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection / TBI |
| Emissions | OBD1,Ca Emissions |
| Symptoms | Excessive Emissions, No Power,Failed Smog |
| Occurs | Under Load, on Accel |
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Vehicle Data
1991 Chevrolet G20 Sportvan
| VIN | 1GBEG25K3M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection / TBI |
| Emissions | OBD1,Ca Emissions |
| Symptoms | Excessive Emissions, No Power,Failed Smog |
| Occurs | Under Load, on Accel |
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