Gm Ls1 Pcm Painless Wiring Diagram

I cover the pcm connectors and de pinning. Function 1 blk 451 pcm ground 2 lt grn 1867 12 volt reference ckp pin c 3 pnk blk 1746 fuel injector 3 control 4 lt grn blk 1745 fuel injector 2 control 5 7 not used. 1999 02 ls1 pcm pinouts camaro firebird corvette similar pcm connector blue pin wire color circuit no.

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Primary wire is typically an 18 gauge wire and is the most common wire found in wiring harnesses.

Gm ls1 pcm painless wiring diagram. Fan controls 1 2 gm pcm s typically will control electric fans usually 2. If i show a wire and your harness does not have it you probably don t need it anyway. This can be programmed as 4 6 or 8 cylinder signal. Ls1 wiring diagram wiring diagram is a simplified usual pictorial representation of an electrical circuit.

These are the red blue pcm connector pinouts that will cover 1999 to 2002 4 8 5 3 6 0. 1 wire harness installation instructions for installing harness numbers. Ignition module bank 1 1 3 5 7 bcm and fuel pump starting system schematics ignition module bank 2 2 4 6 8 battery and ignition switch ect engine oil level cruise module. The stock ls tach signal is 4 cylinder type signal.

98 04 gm ls1 ls6 efi extra length harness 60713 60715. The wire in painless performance kits runs a little larger than the standard. Fuel injectors air pump and iac charging system schematics. Some 2003 ls pcm s tach signal is not strong enough and needs boosted see this link.

The larger wires that feed heavy draw circuits are typically 14 to 12 gauge. The primary wires are 16 gauge with 12 gauge for heavy draw items such as the headlights. I have tried to list all possible wires that will show up 99 02. 98 04 gm ls1 ls6 efi harness vats removed ecm manual p n 90520 painless performance products recommends you the installer read this.

Thirty years ago the first painless wiring harnesses were manufactured in a tiny roll up rental unit on the west side of fort worth. It seems for many people that the scariest part of the modern engine swap is the wiring harness. When you are doing a build with the ls family of gm engines the idea is to end up with a. It shows the components of the circuit as simplified shapes and the aptitude and signal associates along with the devices.

Painless performance 30 years of automotive wiring solutions painless is proud to be celebrating 30 years of american made wiring solutions. Removing connectors and un. In this video i show how you can convert a factory silverado wiring harness to be used in a ls swap vehicle of any type. Your harness may not have a pin in a location i have listed having a wire.

The pcm will supply the negative or ground signal to turn on fan relays. 98 04 gm ls1 ls6 efi harness 60509.