u can have an obd0 block with and obd1 harness. i ran one in my 94 hatch. obd0 block hatch some big 2 prong sensor in the back near the oil pressure switch. obd1 dnt. i heard its some kinda coolant sensor. long story on how i got a obd0 block and i have a obd1 car. lets just say, u live, spend money, learn, and spend again. lol!!!