Alright, I bought a crx from a guy and he got me on it. Really I just wanted another crx for my spl system. It is an 89 with engine from 92 d15b7, 89 si trans, (cv's from 92 teg fit one side and 89 fit the other?) I'm just not understanding how a obd2 engine is using a pm6 ecu. But then again how exactly does positrac work on a plymouth, It just does. Lifes a garden - dig it!