Fixing a 2nd gen 3sgte harness / preping for my swap, no, its not going in Jenns car, its going in MINE! ;) Options

[presure2]

so yea,
as most of ya know, we recently did up a 3rd gen swap for jim and as "payment" he gave me his 2nd gen setup.
as most of ya also know, this setup was originally RJB23's car, which was pretty much a mess from the day jim and shannon bought it.
Click me for details of that story

so once we got the 2nd gen motor up here, it has been sitting on a stand, waiting its turn.
i finally got around to getting the harness off, and am starting to get it cleaned, stripped, repaired, rerouted, rewrapped, and reloomed.
like everything else about the swap in that car, this engine harness was no diffrent, and in defense to the guy who did it (IIRC DGperformace did it) it did work, it was just routed and wrapped all crazy, and the ECU end basicly looked like a birds nest from people troubleshooting the ecu and wiring while it was in the car.
so i started tearing into it, and dustin came by last night and helped me get the interior plugs sorted out, since there was lots of "dead" (wires that go to nowhere) wires in the harness.
i also removed all the stuff i wont need or use, including all the ac stuff, TVIS, TVSV, ect.
once that was done, i went about cleaning and fixing any loose or broken wires, (there were a few, one of which wouldnt allow the car to start with the key...lmao) and rerouting and rewrapping it, getting it ready to be reloomed.
here are a few pics of how that is going.

first, the before. sorry for the blurry pic, its the only one i took..lol



this wire was in the harness that was routed behind the intake manifold, instead of inside of it, like it should be, and chaffed on the IM until it broke..just so happens this is the wire that tells the starter to crank. yes, jim, this really is why your car wouldnt start with the key! lmao



how the ECU side of the harness looks now:



and some of the leftovers:


and just for refrence, a pic of what a stock USDM 3s harness looks like, for an idea of what this one should look like when its done.


ill keep updating this thread and adding pics as i go along and continue with the project.

[njccmd2002]

hey now that you bring it up. Wiring is the same for all swaps. Just different routes right. Just need to find the exact diagram.

What does it entail overall. moving the order of the pins in the plug, going from one place to another?

Can yo just post like a general of whts involved. Im assumming its just a basic rerouting of the wires. Just have to know where, right?

i would like to see that harness finished. Good job.

[presure2]

hey now that you bring it up. Wiring is the same for all swaps. Just different routes right. Just need to find the exact diagram.

What does it entail overall. moving the order of the pins in the plug, going from one place to another?

Can yo just post like a general of whts involved. Im assumming its just a basic rerouting of the wires. Just have to know where, right?

i would like to see that harness finished. Good job.

the one good thing about this harness, is as hacked together as it was, it DID work, so everything was pretty much done for me, i just had to go back and clean everything up.

for someone who dont know the EWD books very well, or doesnt understand why, and how these systems work, my how to would look somthing like this:

remove 5s harness from engine.
remove 3s harness from engine.
get a box, and put them in it.
mail it to tweak, and if you have to, pay him extra to reloom it like factory, with payment.
wait for it to come back.
install 3sgte conversion harness.
trust me, you dont wanna get into this stuff unless your ready for a long hard road if you dont know exactly what your trying to do.
a 3rd gen swap is much easier in this respect, just a matter of repinning a handfull of wires, and adding a relay or 2 if you dont get a full clip.

i added in a pic in my first post of the old usdm 3s harness i had back in the day, for refrence on what the harness im working on should kinda end up looking like in the end.