Finishing up my big install on my car consisting of Dougs long tubes, an lt4 ministarter, and the t56 swap. I HAVE NOT started doing the t56 related wiring yet but I have come up with a couple of wires that I am unsure of their intended location and I believe they are causing my no power situation. What's happening is that even though the battery is good, I get no power to anything in the car. No lights inside work or anything. I thought maybe the large black wire in the pictures went to the starter but it wasn't long enough. I lengthened it real quick and ran it to the larger terminal on my starter but it just made a whole bunch clicking while I was tightening the battery terminal down. Then a final click until I loosened it with the same results.

Then I ran it to the strut tower bolts and tightened it down there. While tightening the battery terminal again, the wire started arcing so I stopped. I need to know what this wire goes to. It is a black wire with a connector made for a bolt to go through it. Probably around a 4-8 gauge wire.

The other wire is a blue wire with a pin on the end of it from a weather pack connector. It is in the same loom of wires that has the knock sensor wire in it. Looks like it is long enough to run down to the starter but who knows from there. Weather pack connector is gone btw.

See attached pictures for both wires.

Big black wire:
http://img40.imageshack.us/img40/3368/picture003qk.jpg
http://img180.imageshack.us/img180/3620/picture009a.jpg

Little blue wire:
http://img190.imageshack.us/img190/5...ture004vbd.jpg
http://img36.imageshack.us/img36/4712/picture007te.jpg

 

Is the large black wire the negative from the battery? I think it connects to the block. There should also be ground wires from the block to the body, usually comes off the rear of the pass side head and connects to the firewall.

I don't remember wire color for the fan switch - but that may be the blue wire. The fan switch should be on the pass side head, between #4 & #6 cylinder, and has a single connector. With the key on, ground this wire and see if the fans come on.

Again - I'm guessing - good luck!

 

Fan switch is green

Knock is blue

Peel the large wire's loom back and see if its actually black or red under there

It looks like the alt charge wire

 

I thought the knock wire was gray? I know whatever the color is, the knock wire is still under the car and still has the connector on the end.

If the black wire indeed is the alt charge wire, where does it go to? You aren't talking about the large wire that connects to the back of the alternator are you? If so, this isn't anywhere near the alternator, plus that wire is already connected..

 

My knock sensor wire is white, maybe gray because its dirty but I'd say white.

Also, where does the black wire go, find out where the other end is. Then let us know, but I'd agree above with it possibly being a negative cable and needs to be grounded to the block.

P.S. Mine was grounded to my intake manifold bolt. Does it reach the manifold from behind the compressor.

 

If its a block ground, I wonder why it was arcing as I tightened down the negative battery terminal? That wire was tightened down against the strut tower and wasn't moving but it was arcing as the negative wire was tightened...

 

Any ideas why a ground would arc while you are tightening the negative battery cable down?

 

Find out where that wire goes towards the front of the car, only reason it would arc is its getting power, so find out where that wire goes, I can see it goes towards the battery area to the right of the AC. Shouldn't be to hard to figure out where it goes from there.