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International Automotive Technicians Network
Mustang Runs Rich wont control fuel press
Posted to Technical Discussion Forum on 2/11/2021 35 Replies

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.

35 Replies Received (View Replies)

 

car Vehicle Data

2001 Ford Mustang GT 4.6L Excessive Emissions

Engine4.6 L
Trans4-speed Automatic (Electronic)
SymptomsExcessive Emissions

car Vehicle Data

2001 Ford Mustang GT 4.6L Excessive Emissions

Engine4.6 L
Trans4-speed Automatic (Electronic)
SymptomsExcessive Emissions