obd2a or obd2b

[h22poweredgsr]

how would i noe if my ecu is obd2a or obd2b?? is there a big diff?? how would i noe if my ecu is obd2a or obd2b if i dont know the year of my motor??

 

[darwins_vtech]

I believe that all OBD2 are the same. It shouldn't matter if it is A or B.

Darin