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Re: Wiring for Dummies -101 ... Need advice !!
Am using a single 850 watt 19" PWM fan in my application. My e67 ecu from the Camaro my motor came from should provide the correct negative control signal for the fan I have. Just added the pins and wires into my PSI harness to accommodate the stock GM A/C pressure sensor the other day. Saw Carl at Vaporworx yesterday. He believes my setup should work. If not, he has a PWM fan controller that can be configured for PWM + or -.
As far as wire gauge any wire in circuit needs to be rated for the maximum current device requires or it can act as a fuse. Over sizing wire to allow for voltage drop is a different subject. I am not an engineer, in my experience I have seen evidence using fine stranded wire in D/C applications allows more current draw than A/C
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