i have a 93 civic lx that i am trying to do a d16y8 swap to. i have the y8 motor and the p2p ecu. i know that i need to rewire the dissy and the alt.. but i have no idea on how to rewire the alt. can anyone help me with on this? also when buying a ecu conversion harness how does one know if needed obd-1 to obd-2a or obd-1 to obd-2b? whats the difference between the two?