I have an '89 Toyota 4x4 Pickup 4 cyl. 5 spd. extended cab. The engine was getting tired so I found a complete rebuilt '93 2.4 to swap in. The guy I bought the engine from unplugged the wiring harness from the computer and left the complete harness attached to the engine, all I would need to do is unplug my harness and plug and go with his............... The question I have is whether the '93 harness is compatable with my '89 computer and other wiring? I don't want to plug it in and fry something or have to do it over again. Thanks for the answers ahead of time, they are appreciated.

Dan