I have gen 3 ecm 12589463. Is there a wire to run 12v from the compressor to help the truck idle with a/c on or will I have to install a pressure switch and relay. The only wires I see are pin 43 A/C Compressor Clutch Relay Control and pin 14 A/C Refrigerant Pressure Sensor Signal (A/C). Will the same wire also control cooling fans? I’ll list my os tomorrow when I have my laptop. The air works right now but dies if I rev it up and then let of off the throttle.