my idle use to go up to 1100 rpm or so with the ac switch truned on as i know this is normal because it puts more load. It's been 2 days now and the idle does not go up when I hit the ac. Is it my engine wiring harness? My ac use to work for the 1st 2 days after I installed the PFC whih was 3 months ago but after that it didn't work anymore so I'm thinking its my harness. Anyone got any ides? The 4 wires have been cut that were supposed to be cut.