I have a 98 honda civic DX, and i have a 2000 acura B18b1 LS engine i want to swap in and i need an ecu. Can someone tell me the differences in OBD2 A & B so i know which one i can use. Most likely im going to use the engine harness that is already in the car. but i also have the Engine harness from the LS as well. Can i use a 96-99 ecu on my engine? or do i have to get a 2000-2001?