Thread: I have a couple of questions about problems I ran into...

I just finished my swap, and here are the problems I'm having.

1- Low oil light is on when the car is on in P, N, D ,and 1. Goes off in R, OD, and 2

2- Temp gauge is inop.

3- Fans not working (they work off of temp gauge?)

4- I have a white plug by battery w/ 2 wires in it (one gray and one green) My old harness didn't have this, where was it?

5- Code P0102 Maf low voltage

6- The harness I used from the GTP doesn't have the ABS wires where my GT harness did. *this is the least of my concerns, but I'd like to figure this out.

7- no gear indicator light/ backup lights

The cars were both 99s

I know this is jumbled, but it's late here, and I've been racking my brain all weekend on this.

Here are my pics of progress so far. I can take a pic of white plug if that helps. Any ideas? Maybe a boost in the right direction? Thanks in advance.

Gt to gtp pictures by gotroxblazer - Photobucket

kind of confused as to why you even used the GTP wiring harness.

what's wrong with using it? It was already on the engine.

nothing is wrong, it just is a little easier to use the GT wiring harness if its already there in the engine bay.

Either way, I used the gtp harness. I found a blown fuse tonight, that I must have overlooked earlier. This solved my mass air code and nothing else. I did find out that there's a resistor that plugs into that white plug by the battery. I got one, and plugged in, still no difference. Anyone know where I can find good wire diagrams?

Well, I've been on alldata since I got home from work staring at pin locations in every connection on the car. I think I found the culprit. *I hope* The Black plug (C1) in the back of the engine compartment mounted fuse block. (This is where the engine harness connects to the block) I got to the bottom row of this plug and found four wires in it. Each wire is related to a problem I'm having! This might be wishful thinking, but I'm really leaning toward that plug not being in straight or something. Now I have to wait till tomorrow after work to go look at it. My car is at my buddy's garage. Oh well, I think I'm onto something.

Well???? Was that the problem? Do you have pics? I'm getting ready to swap a 05 GTP S/C 3800 into a 04 GP. Any and all suggestions would be appreciated. Thanks.

Sorry, what I did was swapped back in my old wire harness. It solved every problem. The donor car was hit in the left front, and had some damaged wires. I thought I had them all fixed. Guess not. I knew my old harness was good, so I swapped that in, and it works great now. After about a month of having engine in car, I spun a bearing, that's where it sits now. I have another engine to go in, but have no time at the moment. I'm also going to rebuild the trans while its out.

I totally understand that... I have around 10 projects going at any one given time. The Kit car is just one of them. I have an 87 Mustang GT Conv. 5.0 that's another. And so on and so on and so on.... hahaha

Well, when my engine went, I bought a wrecked Bonneville SSEI for the engine. Two weeks ago, I bought two more bonnevilles to fix and resell. I ended up using front end parts off of the SSEI for one that I bought. Its like a Pontiac dealer here. Haha! Now, I'm thinking about putting the engine in my GP, selling that, and my other two bonnevilles, and buying a GTO. Not sure what I'm doing. I always change my mind. Good luck with swap.