I've been running the SC2 for nearly a year now. The info it provides is invaluable. FWIW, if you set it as
@LiveTrash and
@diesel have, as well as myself, you'll see the Pre-regen start when the MAP goes below 14.0 and engine is at proper op temps. Once the pre-regen is done, usually a minute or two, then you'll see soot mass start dropping from its current level of 23-24 down to 2-3 on the gauge. The RGN status will show 1 while in regen and then go to #2 when completed at Soot Mass of 2-3 on the gauge. I feel like I've become somewhat of a regen "expert" (loosely of course) since my car is regenning at intervals at less than 100 miles which for me is twice daily. Even without the SCII, I can almost "feel" when the regen is starting and for me the BIG tip-off is the fuel mileage drops dramatically , even on the highway. The accelerator also becomes less responsive to input while regenning. ONce the regen is complete, it feels like the car is waking up again. Note that during my most recent visit (today) to dealer, they told me that my intervals are normal. Prior to "their" firmware update (

) I was regenning at 500-700 miles. Is this a fear of the VW issue haunting GM now??? Note that since the firmware update, I havent been able to go beyond 100 miles without a regen, so my fuel mileage is suffering too.