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1988 Ford Thunderbird 5.0L MIL Lamp on
Posted to Ford Driveability on 9/15/1998

Hello fellow techs. I have been struggling with this thing for a few days off and on. The trouble codes are 41 and 91 lean O2 sensors. I have followed the fuel control diagnostics in both Mitchell and Alldata. I have replace O2 sensors with ford sensors, I...

  Related Documents & Media  1988 Ford Thunderbird

 
Message Closed w/FIX

car Vehicle Data

1988 Ford Thunderbird

VIN 1FABP61F1J
Engine5.0 L / 8 cyl
EmissionsUS Fed
SymptomsMIL Lamp On

Trouble Codes

41lean O2 sensor no switching
91lean O2 sensor
Message Closed w/FIX

car Vehicle Data

1988 Ford Thunderbird

VIN 1FABP61F1J
Engine5.0 L / 8 cyl
EmissionsUS Fed
SymptomsMIL Lamp On

Trouble Codes

41lean O2 sensor no switching
91lean O2 sensor