bronc
Member
- Joined
- Aug 13, 2007
- Messages
- 52
- Reaction score
- 2
- Points
- 8
- Location
- Calgary, AB
- Vehicle Year
- 1989
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Manual
My 91 4.0 is giving me a code now. This just started. Since the swap all was fine until now it throws a code. CEL comes on after you drive for a while and it hits operating temp. Goes away if you shut it off and restart and then eventually it will come on again. I read the codes and got a 41 (both KEO and engine running). That's the only code I get. Hayne's says it means HEGO sensor lean condition. Is that right? What can I do?