wiring harnest differences

[againstdawall06]

i just put in a JDM 7m-gte into my 87 turbo supra. looks like it was a 89-92 automatic engine, the wiring harnest is perfect. so i used that wiring harness, problem is the wiring harness is to short to make its way to the ECU. any alternatives other then extending the wiring harnest? also i searched and read one post saying that i need to use my 87 wiring harness due to some different sensors. is this correct? also i have a pretty good amount of connectors left over. im really trying to aviod swapping the wiring harness out. any help is greatly apreciated.

 

[drjonez]

that's HARNESS.

anyway, reuse your '87 harness. you'll save a ton of headache trying to lengthen and repin the later harness. you'll probably have to swap a few sensors as well as the plugs are different.

 

[againstdawall06]

damn, thats not really what im wanting to hear. thanks though. is it hard to switch them out with everything on still? or do i have to take of the intake manni