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I started my swap a week ago, and now its snowing, but it wont stop me from the swap. I have a bunch of questions as to doing the wiring. I have a 90 harness and tranny and a 92 engine, what adjustments would i need to do. What part of the 1.5 harness do i need to keep for the swap and the 1.5 ecu harness seemed to fit the 2.0l ecu? So far i have taken the dash out and engine ready to pop out. pictures will be up soon.
The harness comes in 2 parts, the interior harness and the engine bay harness. you keep the interior harness and either splice the interior harness to the 1g DSM engine harness, or buy 89mirageman's harness adapter.
Additionally the 90 4g63t DSM engine harness is different from a 91-94 4g63t engine, so your going to have to search about what you need to get that sorted also.
From my experience....89-94 mitsu SOHC ecu's dont fit DOHC engine harnesses and vice versa, no matter what displacement.