i need help with this situation ima do dis gsr swap in my 98 civic dx and i got 2 ecu's one is obd2a and the other obd2b im jus confused on which one i can use and another thing i only got the obd2b engine harness.... i jus need to know weither i can use it or if i have to get the obd2a engine harness and what are the problems that i might run into reply please HELP!!!!!!