Quote:
Originally Posted by sprint_9
What generation of PCM do you have, gen 3 or 4? I was thinking my Gen 4 had something like what you wanted, I know under the program in HP tuners there is an RPM and TPS option to disable the AC. I had hoped to use this on mine but haven't gotten that far into it yet.
If running through the PCM isnt an option I will most likely go with something like what is shown in this manual from Holley. http://documents.holley.com/199r11334.pdf |
Quote:
Originally Posted by Wildkarde
They all have that option in the ecm, just that from 2003 on theres no output for turning the compressor on and off in the ecm, its handled by the BCM through the data link.
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Its an 04 truck pcm, blue/green. I know the pcm has the output but don't know if it works when the AC is controlled externally (like through VA). If the output is in the pcm for high rpm/wot cutoff, but the AC command is actually triggered by the bcm, does the pcm disable output work regardless of whether or not AC is on? If so, that would work. Need to figure that out.