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1991 Ford Explorer Eddie Bauer 4.0L MIL Lamp on
Posted to Ford Driveability on 1/11/2000

Hi, need a little help here. Check engine light comes on intermittently, always code 41, EGO not switching. New oxygen sensor had no effect. Found TSB on MAF skewing results, causing rich at idle, lean under load. We removed sensing bulb, could not see any...

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Message Closed w/FIX

car Vehicle Data

1991 Ford Explorer Eddie Bauer

VIN 1FMDU32X9M
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

41EGO not switching rich lean
Message Closed w/FIX

car Vehicle Data

1991 Ford Explorer Eddie Bauer

VIN 1FMDU32X9M
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

41EGO not switching rich lean