My ac just started going in and out. it seems that when the rpms drop below 2000 the ac kicks off. when I hold it at about 2200 rpm the ac clutch will cycle on and off. Hooked up gauges to it an when compressor is running i am getting about 30 on the low side and 400 on the high side. when compressor is not engaged i have about 100 on low side and about 150 on high. also if it matters, when the ac cuts out it starts blowing hot air. I know i have a short in the outside temp sensor, but it is reading about normal right now. WTF