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binford · 05-17-2018, 08:20 PM

Yes fans can be controlled by the PCM. LT1 adds pins using wire removed from other pins.
I control my fan in another vehicle, by having a tempature switch installed in the radiator hose. Metal section that fits in the hose.

If you have the transmission, that too is controlled, needs to know when to lockup.
If you have a dbw gas pedal that is controlled too via TCM

You can feel like it's getting over your head, but read a few more pages on LT1 and it helps to understand .
Thats what I've been doing

05-17-2018, 08:20 PM	#15
binford Registered User Join Date: Aug 2004 Location: Sacramento Ca Posts: 126	Re: LS Standalone DIY harness Yes fans can be controlled by the PCM. LT1 adds pins using wire removed from other pins. I control my fan in another vehicle, by having a tempature switch installed in the radiator hose. Metal section that fits in the hose. If you have the transmission, that too is controlled, needs to know when to lockup. If you have a dbw gas pedal that is controlled too via TCM You can feel like it's getting over your head, but read a few more pages on LT1 and it helps to understand . Thats what I've been doing Last edited by binford; 05-17-2018 at 08:26 PM.