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1994 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, Poor Fuel Economy
Howdy!! Scan tool Does not read Air fuel ratio. 0.00. Cant find any thing on PROM or nuthin. no codes, LT fuel 126 ST fuel 130. O2 sensor switching too fast, cross counts 15 to 18, Oil contaminated with fuel...
FIX posted 3/30/1998
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| VIN | 1GTDC14K4R |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Emissions | OBD1 |
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy |
| Occurs | Always |
| Misc. | 8145 Prom |
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Vehicle Data
1994 GMC C1500 Sierra SL
| VIN | 1GTDC14K4R |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Emissions | OBD1 |
| Symptoms | Poor Idle Quality, Misfire, Poor Fuel Economy |
| Occurs | Always |
| Misc. | 8145 Prom |
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