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1994 Ford Mustang 3.8L Excessive Emissions, Poor Idle Quality, Cuts out, Poor Fuel Economy
Posted to Ford Driveability on 7/18/2006 8 Replies

this one drives me crazy front o2s sensors always stay above 900mv full rich and rear o2s stay below 100mv full lean car runs ok when in closed loop but will switch to open and runs very rich car has been at 5 other shops been broken for 1 year all sensors and...

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car Vehicle Data

1994 Ford Mustang

VIN 1FALP4042R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Cuts Out, Poor Fuel Economy
OccursCold, Hot
Message Closed w/FIX

car Vehicle Data

1994 Ford Mustang

VIN 1FALP4042R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Cuts Out, Poor Fuel Economy
OccursCold, Hot