I have a 2018 2500 G56 that is tuned by DRD and deleted. I've had a recent issue come up where my truck will pour out white smoke when running the 12V tune (any power level). The smoke is most significant at idle/coasting while in gear. The truck also seems to run like it has a misfire/rich condition (stutter/stumble) if you slowly increase the RPM in neutral. I have had this tuning since December and have had zero issues running the 12V tune smoke free at any temp, this just started to occur in the past week or two. The ambient temp and engine temp seem to have no effect on the white smoke being produced. The standard tuning still runs flawless at all power levels, just the 12V that i'm having an issue with. If anyone else has run into this or has any suggestions it would be much appreciated!

I have made no changes to the truck since installing the tuning and did try reverting the software back to stock and reloading the DRD custom tuning but there was no change.

Thanks in advance!
Sean