1G 1990 wiring harness question

[v8s_are_slow]

I'm being told that a 90 harness is different than the 91-94's. Does that pertain to both the engine harness AND the interior harness to the ECU as well? Is that the sane harness? Or? Thanks!!!

 

[92AWDHX40]

Hey Scott your back I forgot I think just the auto body connector is different pinout. The ECU connectors don't matter just pin 6 and 14 you change up if your switching ECUs . Example the 91 ECU you switch the pins for the ECU for them MAF if I'm correct, Craig can confirm this.

 

[CrackedDSM]

Interior harness is different as is the engine harness. Couple different style connectors, and the 90's have a unique CAS and PTU plug, as well as a "tach filter" for the coilpack. On the interior, the dash harness is different in a couple spots as well.

 

[19Eclipse90]

The engine harness is different. And where the engine harness connects to the interior harness, there are some differences.

This article discusses all the differences on the engine harness itself: 1990 Engine Control Wiring Harness