Ls Swap Fan Wiring

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Ls swap fan wiring.

30 other red wire needs constant 12 volt power from the battery. Exhaust and induction guide. Psi sells standalone wiring harnesses for gm gen ii iii iv v ls lt based engines and transmissions. If you don t you have to head back to the salvage yard or take your chances on ebay.

86 gray white wire goes to the ignition switch. Looking for an affordable in stock plug and play wiring harness for your ls swap. Wire it once and wire it right with painless. 87 red wire connects to the positive wire on the electric fan.

Your 1 source for oem operated pcm controled and universal electric fan harnesses. In most cases people end up having the harness that came with their ls engine rewired. 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. Photo courtesy street performance.

Make sure you grab the wiring harness from the donor car. 85 black wire. Lt1 ls1 05 oem flex a lite universal street strip we have you covered. When you are doing a build with the ls family of gm engines the idea is to end up with a.

Thank you to all that stuck with us during this hectic time. You must use a relay. Wiring harness and wiring guide gm ls series pcm ecm. Some 2003 ls pcm s tach signal is not strong enough and needs boosted see this link.

You can buy a stand alone harness have a new harness custom built or rewire the harness that came with your ls engine. Chassis and suspension stroking options for big inch ls engines how to control your gen iii 3 v 8 ls engine ls swaps. You can not directly connect pcm fan control wire to fans. Official site of painless performance american made wiring harnesses for your hot rod street rod muscle car off road and everything in between.

Comparing gen iii controllers crankshaft guide for building big inch ls engines camaro and firebird ls swap. The pcm will supply the negative or ground signal to turn on fan relays. Fan controls 1 2 gm pcm s typically will control electric fans usually 2. Camaro and firebird ls swap.