Hey guys when I brought this car air con worked fine some reason now when I turn it on revs go up and down when idling like from 400 to 800 and can hear air con clicking on and off. well at least that's what it sounds like it has apexi power fc think maybe computer is not picking up that air con is on ??! Any one got any know be great thanks , oh it's 2000 wrx gc8 model