Ls Swap Fan Wiring

It seems for many people that the scariest part of the modern engine swap is the wiring harness.

Ls swap fan wiring.

86 gray white wire goes to the ignition switch. Thank you to all that stuck with us during this hectic time. Lt1 ls1 05 oem flex a lite universal street strip we have you covered. We are currently up and running and shipping from our new location.

Some 2003 ls pcm s tach signal is not strong enough and needs boosted see this link. 87 red wire connects to the positive wire on the electric fan. When you are doing a build with the ls family of gm engines the idea is to end up with a. Photo courtesy street performance.

Fan controls 1 2 gm pcm s typically will control electric fans usually 2. You can not directly connect pcm fan control wire to fans. In most cases people end up having the harness that came with their ls engine rewired. Camaro and firebird ls swap.

You can buy a stand alone harness have a new harness custom built or rewire the harness that came with your ls engine. 85 black wire. You must use a relay. Looking for an affordable in stock plug and play wiring harness for your ls swap.

Comparing gen iii controllers crankshaft guide for building big inch ls engines camaro and firebird ls swap. Official site of painless performance american made wiring harnesses for your hot rod street rod muscle car off road and everything in between. The dlc or obdii port is a must have for any ls swap and it is often overlooked when retrofitting a stock harness. Wire it once and wire it right with painless.

30 other red wire needs constant 12 volt power from the battery. These harnesses include the gen ii lt1 lt4 gen iii 24x ls1 ls6 and vortec truck engines as well as gen iv 58x ls2 ls3 ls7 vortec and gen v lt. Wiring harness and wiring guide gm ls series pcm ecm. The pcm will supply the negative or ground signal to turn on fan relays.

Exhaust and induction guide. Make sure you grab the wiring harness from the donor car. When doing an ls swap you have three options in integrating the engine wiring harness successfully. Your 1 source for oem operated pcm controled and universal electric fan harnesses.