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Mustang Runs Rich wont control fuel press
This car came in running super rich, black smoke,wont idle. No codes. Scan showed all O2s at 0. Fuel trims were +25 both sides. Tested O2 wiring to ECM and was good, heaters were working. Replaced front O2s and all came alive. Runs much better but still too ri... Login to read more. 
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35 Replies Received
35 Replies Received
| Engine | 4.6 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Excessive Emissions |
Vehicle Data
2001 Ford Mustang GT 4.6L Excessive Emissions
| Engine | 4.6 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Excessive Emissions |
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