Thread: 1997 car wiring... and motor/trans swap HELP

Well I found all the 1997 wiring diagrams, how about 1999 engine harness or car pinouts, fellow.

Sounds like you are close.

You can probably remove the abs stuff... it probably wont work without a crazy amount of rewiring.... other than that, the fuseboxes are usually pretty dang close, and you cant really screw much up there if you do a side by side comparison... its just 12volts going to everything in the harness.

the other main body connectors should be the same, as I do not believe they ever changed.

Is there any problem with using the 97 pcm and harness? With the 99 you'll need your VIN programmed into the PCM so it plays friendly with the BCM and the rest of the car.

Is there any problem with using the 97 pcm and harness? With the 99 you'll need your VIN programmed into the PCM so it plays friendly with the BCM and the rest of the car. Today 12:30 PM


The 97 gt 3800 harness used a 4t60 with vacuum mod... And I only really need to move 10-12 wires, I believe

I have hptuners so programming is garenteed

Thank you very much for the replies

That link was a nice read, but he did, what I don't want to do... and used a 97 harness and computer. I guess i will look and try and find one, cheap but i dought it.....

I want to repin... or wait a sec... make my own 97 harness out of my 97GT harness and the 99GTP harnesses.... ebcm pinouts for is the 99 would be great....

all have to do is send the right 98-02 ebcm signals to the right pin on the 97 pigtails, not hard at all if i had the pinouts for the 98-02 ebcm connectors

Okay ive been through this exacly wen i had my 2000 gt and put a 97 engine gtp in it. Let just say its gonna bee oneeeee big head ache . First off ur better off to swap the whole indash harnesses and engine bay harneses and that includes the abs modual that goes with the proper harness. And as for the cab/rear harness you will have to reground your fuel pump gauge a different way because 97 harnesses are compatible wats so ever with the 98-03. It took me a week roughly to do all this and u also would have to swap the air bags to keep them with the proper harneses.. Let me know how u do if anyquestions just pm me

Bill does the ve table, for my 97 na computer, have capabilities suited for above 100kp or should I get a boosted 97 pcm, your right there are less repinning....

I have started looking for a harness and pcm

Ok so everyone in the GP universe, does not believe that a 99 engine harness and computer cant be adapted to run the 97s steering assist,abs, warning lights and tach

Mainjet thanks for the pinouts, I and going to look deeply to see if I can adapt this mess

Alot easier to swap harneses in both car lol just need 1 night and a pack of beer lol

BillBoost.... I have never tried to swap parts of a .bin with hptuners, I have found a file on hpt's site from a 97 gtp, do I change the vin on that file to use on my gt pcm or something... what did you do? or what should I do?