Ok thats what i needed to hear... I didnt realize that trying to swap out the IN-car portion of an OBD1 harness into an OBD2 car would be such a bitch! I was hoping i could buy both OBD1 harnesses and just run the in-car one through the firewall and directly to the ECU. My next question, is it possilble to switch out OBD2 harnesses? IE, use a 99 SI harness in my 97 dx... just curious. I am NOT interested in yanking the dash and dealing with 5million issues.. Thanks