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Re: Depinned engine harness --- now ... ??
I wouldn't have the fan run the whole time the A/C is on, that will just prematurely wear your fan out. The way e015475 said he wired his is the way I do it too. Run the VA as stand alone, and the trinary switch will control the compressor and also provide a ground to the fan relay to turn the fan on based on head pressure, that way it shuts off on the highway. You will want to let your tuner know though so he can disable the error reporting for the fan code because it may set a code when the PCM sees the relay grounded but didnt command it.
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