I almost have everything out under the hood, but how do i get the wiring harness to come throught the firewall? what part of the dash do i need to take off to get it through. I already have the ECU out put i can't see where it comes through on either side, inside the car.

Take off the kick panel. Then you should see what you need to do.

1 more thing, what don't i need to take off as far as wiring goes for the Haltech? It doens't control all does it? I mean the it doesn't touch cpu controls, like lights and stuff, right? Or do i have to rewire the whole friggin car?

All of that stuff won't be affected, but you'll need to keep parts of the passenger side harness to retain your wipers, cruise control, and water temperature gauge. When I do a standalone ECU--I've done 2--I remove all of the unnecessary wires from the harness.

so let me get this straight, i take out all the wiring, from both the ecu and cpu? U know how there is a shitlaod of wiring on the drivers side that comes from the cpu, i take all that crap out, right? I figured out how to get the cpu wiring out, but didn't want to start if i didn't have to. One more thing i still don't see where to pull the ecu wiring out from, i have the kick panel out, but the wires go where i can't see, and none appear to goto the hole where all the wiring from under the hood goes to through the firewall.

No, just take out the harness that goes to the ECU. That's the one you'll have to modify. Everything else can stay the way it is. The harness plugs are attached to the kick panel, right under the dash.

O SWEET! https://www.nopistons.com/forums/pub...1047683785.gif I got intimidated by all the wiring going to the cpu. Good thibg i didn't pull it. hehe thats why i came back here. coo coo. https://www.nopistons.com/forums/pub...IR#>/smile.png

When I first did my car I changed EVERYTHING because I wanted everything from my 91 in the 88 body. B)

So if you sell your car, are you going too sell it as a 91, or 88? https://www.nopistons.com/forums/pub...1047683785.gif

When I first did my car I changed EVERYTHING because I wanted everything from my 91 in the 88 body. B)[/quote]

damn but that was fun :o

So if you sell your car, are you going too sell it as a 91, or 88? https://www.nopistons.com/forums/pub...1047683785.gif[/quote]

I'd probably never sell the car complete. If I can't have it nobody can. https://www.nopistons.com/forums/pub...#>/biggrin.png

[COLOR=purple] I hope this helps everyboby out on this wiring harness. I am doing a 91 T2 conversion on my 88 NA. I knew this was going to be a pain in the azz from the beginning, but... it will be a bad mofo when its done. I have already pulled the wiring harness out of the 88, the is no, none, nada wiring left in the car. There are 4 parts to the wiring harness...



PART #1- This is found on the passenger side of the car. It runs from all the engine sensors/components to the ECU. It runs from the engine to the ECU through the firewall. You dont need to pull the dash to get this one. If you are doing a Zankei-(86-88) to Kokei(89-91) A lot of things are different so it might be safe to change every part to the wiring.

PART #2- This runs from the front of the car (ie: horn, headlights, relays) to the CPU located under the driver-side kick panel and over to the ECU area to the AC/heater assy's. I had to take the dash out to pull this one.

PART #3- This runs from the CPU under the driver-side kick panel to the rear of the car(ie: tail-lights, fuel pump)

PART #4- This runs from the battery to the starter . I havent pulled this one yet, so this is all I can tell you about this one.



I hope this helps you guys out. By the way, if you are interested in doing a turbo conversion to your NA, I know where you can get front clips(1/2 cut cars) from Japan. It will cost ya about 3500, but you get a low-mileage motor and tranny and everything needed for the conversion, like the wiring harness, plus whatever aftermarket stuff the car has on it.. email me at brad_johnson@hotmail.com and I will send you the phone # of the only people who can find these for you....

i haven't screwed around with it too much since im busy w/ bike license, but i have the ecu out; and are u supose to pull the ecu engine wiring harness out from under the hood or from inside the car? It won't budge either way, what am i smokin here? <_<

If you pull it out inside the car then you can pull both the motor and harness out together.