I need help with the wiring!
It my first time i took out all the stuff that wasnt needed and i cut all the wires off the fuse block. My question is i know the pink one need to go to a on off switch and orange needs to go to the battery but what are all the rest of the wires for?
Theres like green ones blue ones purple and white off the fuse block what do i do with those?

 

I used autozone's website when I made my harness. Got all the wire diagrams for my year car, the PCM I was wiring to and the Harness I started with.

I havnt wired a LS in a few years but.... IIRC

Pink-all of these are fused ignition to power sensors etc
Orange-PCM battery (i think there are 2)
Solid Green- I think was Fuel pump.
Purple- I'm pretty sure is starter trigger wire


Also keep in mind if you are starting from a truck harness and wiring to a LS1 Fbody PCM a lot of the pinouts/colours are different.


Good luck, double and triple check it all before you loom it up.


EDIT**** I assume LS and not LT as that's old news lol

Jay

 

Okay i know that but what do i hook them up to do i need to buy a universal fuse block?

 

What year car do you have? Are you building a full plug an play harness or a stand alone? Sound like you have a 5.3-6.0 truck harness.

You seem to be struggling with this harness over the last few weeks.

Get a ohm meter and trace out the pink wires to find out where they all go. One will be for each injector, one for MAF, each O2 sensor, one for each coil plug(large white connector coil harness plug into, 2 total). Injectors for bank1 and coil power feed for bank one get tied together and fused. Either by a small fuse box for a stand alone style harness, or through the c207 under the dash. Same thing with bank2. Most of the other wires in the truck fusebox connector will not be needed.

Assuming you are building this harness for a 0411 PCM, this diagram pocket made should be extremely helpful.

 

The middle bundle idk where it goes?
I have a truck harness my motor is an 01 my car is a 84