2012 peterbilt 386 isx Cummins cm 2250 regen issues

[Yc123]

Hello everyone

I have 2012 peterbilt 386 Cummins cm 2250. I been having issues with dpf system.

I have alr day replaced the dpf filter. And put new egr valve in today but I am still having problems with this system. Truck keeps asking for regen even when I just started doing force regen thru insite. Regen doesn't complete on it own and had regen going for almost 2 hours so I stopped it my self. Any ideas what I should do now. I can't do @m*m^2 yet. That is my last option