How to Megasquirt your 3G Hemi

Just finished the AC install on the car, and I wired the AC Clutch relay to the megasquirt. The MS3x will cut power to the AC compressor at the throttle position of my choosing (50%), and the MS3x box will turn on the fan for me when the AC is on (and will cut the fan at the throttle position of my choosing as well). I also need to look into cutting the fan above a certain speed.

For the AC install, 12v into the 'Nitrous In' pin tells the box the AC switch has been turned on (and the safety switches in the system are 'okay'), and 'Injector bank 2' grounds the relay to turn on the AC compressor.

If you recall, I have 'Injector bank 1' grounding the relay for the fan (FYI- I just had to upgrade my fan relay - I wired 3 40 amp relays in parallel to handle the mark 8 fan).