× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1991 Ford Ranger Custom 3.0L MIL Lamp on
Posted to Ford Driveability on 2/24/1999

One of our drivers came in with the CEL on, I ran the KOEO and KOER quick tests and found a DTC 41. The problem I have is Coke supplies it's technicians with very little Diagnostic equipment. The only information I have for diagnosing this problem is from ...

  Related Documents & Media  1991 Ford Ranger Custom

 
Message Closed w/FIX

car Vehicle Data

1991 Ford Ranger Custom

VIN 1FTCR10U7M
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
EmissionsFederal
SymptomsMIL Lamp On
OccursHot

Trouble Codes

41HEGO Not Switching Rich/Lean
Message Closed w/FIX

car Vehicle Data

1991 Ford Ranger Custom

VIN 1FTCR10U7M
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
EmissionsFederal
SymptomsMIL Lamp On
OccursHot

Trouble Codes

41HEGO Not Switching Rich/Lean