2002 LS1 Wiring Harness Modifications

[Chevy-Art]

Thanks for your help. Now where in the service manual is there a definition/explanation of what the circuit does, or where can I find the circuit number and explanation? I know some are easy to identify, but some are not. On page 6-1412 Pin 2, Wire Color LT GRN, Circuit No. 1867, Function 12 Volt Reference. I want to know this to figure out which wires you knew to remove, if that makes any sense. By the way I forgot to add, my vehicle is a 1990 1/2 ton 2 wheel drive RCSB. It had a 5.7 TBI, now going to an LS1/4L60e.

[RedHeartbeat]

I traced the wires the old fashioned way, split the loom and followed them where they went or used an ohm meter to find both ends of a wire at its respective connector.