i have a odb2 engine coverter to obd1 without jumper harness(type r+p28) changing that to obd2 ls and ecu but the motor just came with the engine harness and ecu and nothing from the ecu to fire wall. is it possible to use mine? going on a hunch and saying no let me know if im wrong

 

I read that a couple times and couldn't figure out what you were trying to say. My head hurts now.