Ls Swap Fuel Pump Relay Wiring Diagram. Your harness may not have a pin in a location i have listed having a wire. The procedure should be similar for all ls swaps.
These are the red blue pcm connector pinouts that will cover 1999 to 2002 4 8 5 3 6 0. The larger wires that feed heavy draw circuits are typically 14 to 12 gauge. Do not run a 16 to 24 gauge primary wire to a fuel pump because it will cause a fire.
The procedure should be similar for all ls swaps.
Electric fuel pumps require a lot of current so it s important to run a relay circuit from the pump trigger lead and to run 12 gauge positive and negative wires to the fuel pump. The wire in painless performance kits runs a little larger than the standard. 2001 vortec 8 1l info. You are going to need 4 relays up to 7 if you want an electric fans 2 fuse blocks some 12 gauge wire and a lot of butt connetors.
