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I am installing dual aftermarket fans and a shroud from Derale to keep the wagon cool with the AC on. If I upgrade the wiring harness via Gerry's harnesses, can I keep PCM control of the fans or will I have to go aftermarket?
 

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Don't know about your replacement wiring harness from Gerry's. The one I just got from Psi only has a single fan control lead, which will control one fan relay. But I'm currently in the process of going through the old wiring harness vs the replacement - pin by pin - to see what has been removed. If the replacement removed a feature I want to keep, I'll pull the pin out of the old plug and insert it into the new one.
 
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