All 1G 4G63 harnesses the same?

[iamtall77]

Okay so I know that the 90 wiring harness is slightly different and the NA has no provisions for a knock sensor, but otherwise are they the same? I'm looking to pull a wiring harness from a 1G NA and run a 1G turbo ECU. Can I do this just by simply running a knock wire into the harness? Is this going to be too much trouble to try? Any ideas other than trying to find a shell with the whole harness for a turbo? Let me know. I'll keep researching and come back if no one else has.

 

[timloomis]

youve got it right on.it has other misc things(turbo harness),like fuel pressure solenoids and such.but thats what im gonna do,just wire in the knock sensor.

 

[tom04841]

Dont forget about the 7th wire for the turbo MAF

 

[iamtall77]

Okay so I got smart and decided to look at the nifty wiring diagram in my Chilton and guess what, they're nearly identical. The turbo harness has a resistor wired in before the injectors and the WG selinoid in pin #A105. The two MAS harneses should be the same according to this. The only other difference I see is the wire color for pin #C13 can be B/G or B/W instead of just B/G. Anyone else know of a difference? Is the NA a 7 or 6 wire hookup? Like to know ASAP.

Hope you can read these images.

 

[timloomis]

the turbo harness has 1 more mas wire,fp solenoid,purge solenoid,boost controller,knock sensor.the 7th mas wire isnt important since the maft doest even use it.and the fp solenoid and purge is just for fuel economy and fuel cut.and of course you need the knock sensor.and youll need the injector resistor box if you use low impedance injectors.