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1990 Mercury Cougar LS 3.8L MIL Lamp on
Posted to Ford Driveability on 1/31/2001

Hi Guys,

Working on this Merc Cougar, customer complaint is that the check engine light comes on after driving the car 6-7 miles. In december we replaced head gaskets and did the normal tune-up stuff at the same time. We did replace the O2 sensors about a wee...

  Related Documents & Media  1990 Mercury Cougar LS

 
Message Closed w/FIX

car Vehicle Data

1990 Mercury Cougar LS

VIN 1MEPM6042L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MPFI
EmissionsFED Emissions
SymptomsMIL Lamp On
OccursAfter Driving 6+ Miles

Trouble Codes

41HEGO Sensor Ckt Indicates Lean
91HEGO Sensor Indicates Lean Left
Message Closed w/FIX

car Vehicle Data

1990 Mercury Cougar LS

VIN 1MEPM6042L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / MPFI
EmissionsFED Emissions
SymptomsMIL Lamp On
OccursAfter Driving 6+ Miles

Trouble Codes

41HEGO Sensor Ckt Indicates Lean
91HEGO Sensor Indicates Lean Left