np24
New Member
- Joined
- July 26, 2008
- Messages
- 7
- Reaction score
- 0
- City, State
- Shelton, Ct
- Year, Model & Trim Level
- '87 Ranger, 4x4 SuperCab
I have a 97 Ranger with a 4.0l. It was originally an auto and I swapped in the manual with the correct ecm.
What would cause an ecm to not read the 3 oxygen sensors and the speed sensor?
I am having this problem with both ecms, auto and manual.
I'm getting oxygen sensor activity at the ecm connector. I checked with a meter.
The speedometer works and the gem won't shift to low range unless the truck is almost stopped.
There is no abs light on and it works correctly.
The only code that comes up is p0401 because the egr valve isn't hooked up. Its a 93 manifold with no provision for it.
The front O2s are brand new.
Could the rear O2 be shorted and disabling everything?
Thanks
What would cause an ecm to not read the 3 oxygen sensors and the speed sensor?
I am having this problem with both ecms, auto and manual.
I'm getting oxygen sensor activity at the ecm connector. I checked with a meter.
The speedometer works and the gem won't shift to low range unless the truck is almost stopped.
There is no abs light on and it works correctly.
The only code that comes up is p0401 because the egr valve isn't hooked up. Its a 93 manifold with no provision for it.
The front O2s are brand new.
Could the rear O2 be shorted and disabling everything?
Thanks