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Determining the cause of excess fuel
I am dealing with a condition of major correction for overfueling. All PCM inputs are good- TPS, MAP, BARO, ECT, O2S. However, LTFT (block learn) settles in around 105-110 to get the O2S happy and STFT (multiplier) around 128. Injector PW (per the PID) begins ... Login to read more.
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| Engine | 5.7 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1994 Chevrolet G20 Chevy Van 5.7L
| Engine | 5.7 L |
| Trans | 4-speed Automatic (Electronic) |
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