Ok sorting out all the bugs, and this one popped up. Havent been running the AC much lately (today was the first time Ive really needed it, 88 with 86% humidity), and I noticed it idles rough as crap, almost lopes with the AC turned on. The truck actually stalled out in reverse as I was idling into a parking space tonight. This really bugs the crap out of me, a cummins stalling at idle???? WTF???? I can sit at a red light and hear the truck loping (or what I would call loping, kind of like an old big block with a stick cam at idle) watching the tach Im seeing it go up and down in small increments, but you can def hear it. Oh and it does the same thing first thing in the mornings when I go to start it, doesnt matter if the truck is hot or cold. If I havent ran it in a couple hours does the same thing, idles rough as heck then smooths out, with AC it doesnt smooth out at all. Is my idle set to low??? EDIT- Any of you fellow smoke blowers bless me with your god like knowledge of the beast thou art cummins.