Originally Posted by TCrook
I have a 94 4 banger that I am trying to get a little more juice out of. I swapped to a 4.0 throttle body that I got from a junkyard yesterday. Everything hooked up fine. Crank her up and the engine goes wide open. I shut it off tried again, same thing. Any ideas on what I did wrong? Need some help here.
I have the exact same issue on my YJ. Only difference is I did swap both 2.5 sensors onto the 4.0 TB before installing the 4.0.
I checked they electrical connections. Everything looks in great condition. I even cleaned the sensors and 4.0 throttle body before install.
I saw on another thread that resetting the ECU might fix the issue? Thoughts on this?
Any ideas on what could be wrong?