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1993 Ford Taurus GL 3.8L Excessive Emissions, Poor Idle Quality, Stall, MIL Lamp on
Posted to Ford Driveability on 8/12/2008 10 Replies

This taurus is lean at idle, STFT +33 LTFT 0, MAF .64v at idle, both o2's .01 - .03 No vacuum leaks found, motorvac'ed injectors no change.

2500 rpm STFT is +6 to +11, LTFT is 0, o2 sensors .1-.9v MAF 2.38v

Unhook MAF and fuel trims go -2 to -8, idle smooths...

10 Replies Received (View Replies)

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car Vehicle Data

1993 Ford Taurus GL

VIN 1FALP5240P
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD I
SymptomsExcessive Emissions, Poor Idle Quality, Stall, MIL Lamp On
OccursAlways
Message Closed w/FIX

car Vehicle Data

1993 Ford Taurus GL

VIN 1FALP5240P
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD I
SymptomsExcessive Emissions, Poor Idle Quality, Stall, MIL Lamp On
OccursAlways