I'm starting on the electrical portion of my project. I have an LS3/T56 that I'm trying to flange up, but the LS3 (L76 with an LS3 top end) instruction booklet was hardly of any help.

As of now (It is stuffed in a corner and I'm really not sure at this point if I'm going to keep it there since it may get wet ), it looks like there are only two main wires coming out:

Grey: fuel pump
Blue: fan

However, I saw from another thread where someone was putting in an LS3 that those two main studs have wires connected to them as well (roughly 12 gauge). I assume at least one is a power wire. Can anyone offer some direction in this department? How many connections should I plan to make to get it to mate to my Painless harness? I have almost no idea how to wire this up due to the lack of instructions that came with it. I have already mostly installed the Painless harness throughout the rest of the car, so I assume minimal connections need to be made.

I'd really like my fans to be powered per the attached:
http://farm7.static.flickr.com/6074/...05032577_o.png
(two electric fans) but the LS3 fuse box only has one relay and one wire. I have other external relays ready to go under my dash, but I have read that it is better to have the ECU control the fans.

Here is some info on my ECU if that helps...
GM Racing
GM# 19258268
Gr. 3.670
GM Performance Parts LS376

Also, the diagram on my fuse box cover is faded after being left out in the sun for a day, so if anyone can provide a screenshot of theirs, that'd be great.


Thanks for any help. I have searched the net for a detailed diagram, but am at a loss with how to proceed.

 

Call painless