Alright guys. I just completed the throttle body (95 XJ 4.0) and 703 injector (96 Neon 2.0) swap on my 94 YJ 2.5. I cleaned the throttle body and injectors. Swapped the IAC &TPS from the 2.5 TB, installed new seals on the injectors. Reset the ECM (battery disconnect and touched the + &- for 1 min.). Started up fine, the idle is moving up and down ( I took the IAC out of the housing and cleaned them both with carb cleaner), but I think it is trying to find its 'set'. Went for a short drive, the response is great, feels like it has a little more power and is much sharper. Ran great under 3k rpm. When I tried to accelerate moderatly and got above 3k it felt like it was cutting out and fell flat on its face. The CEL turned on and stayed on. Got back home and checked the codes. Codes for IAC, AIT and MAT(what my Chilton manual said, I think MAP).
I think the IAC is still trying to find its set and the AIT is seeing anlot more airflow and is confused. Should I have swapped the MAP sensor off of the 4.0 XJ? Sorry to be long winded, but I would rather seek knowledge from someone who has done this before instead of just throw parts at it.