outlaw99
New member
- Joined
- May 20, 2008
- Messages
- 4,209
We had the same issue with an '07 ecm/harness on an '08 6.7. Don't know why it would be different than say an '06 on a '08 but went to 03-04 injectors and it worked fine. Had to swap out the pedal too. It ran but it was rough and rpms would stay up after you let off.
did you run a 06 operating system in the 07 ecm? could be the same reason why 07 trucks dont like smartys either