Well im about to start looking for a harness to make my 91 n/a into to a gte, I know i need to use an 89 or above ecu and harness but id rather use a 90 or above ive read alot about people haveing problems with the 89 stuff because of all the diffrences, Question is how do i tell by looking at a harness what year and model it came out of? any way to tell? i dont wanna get ripped off im shure that wouldnt happen on here but if i found one else where it might happen.