ok, i am thinking of doing away with my presure switch and run my compressors off of a toggel switch. So can i run a gauge inside my car to view the pressure inside of my tank?
I wouldnt do that. If you forget to turn it off then you can burn up your compressor. Or worse if it builds up too much presure and your tank could blow. Trust me I messed up one the same way.
just wire your realy through your switch. i did away with my pressure switch and i use a toggle. mine is wired up to when the switch is off the compressors wont work. this will eliminate you leaving it on or something.