Allright 24v experts, truck has been running great until this morning. Now, I have a rough idle (sounds like a nasty pull truck with lots of timing), and lots of eye burning white/grey smoke. (idle and cruising) Turning on the comp makes it worse, so it seems like it is at least partly timing related. It is also hard to start. I thought it could be CPS, but tachometer works fine. Could it be a stuck injector??, injection pump, any ideas. I'm at work now, so i can't put it on the scanner, but i retrieved the codes off the odometer and got a p0230 in the ecm. For what it's worth truck runs strong once under boost, just nasty rough idle and lots of smoke. like i said, it sounds and looks like a truck with really huge injectors. Thanks for any help