Steve I’m looking for some help. I’ve owned my car about three years and have spent very very little time on it. Car runs and performs like it should. My lx 5.0 idles roughly around 13-1400 rpms when warm, then drops down to 900-1000 rpms when put in Drive, and again drops down to what I think the idle should be all the time when car is in Drive and the AC is turned on. At this point you can actually hear the Anderson N41 camshaft. I do have the megasquirt 2. How can I correct this?