CM2250 Regen

[szartman379]

So long story short, I did a EGR tune up, had DPF cleaned, did forced regens, etc. I've replaced all my pressure and temp sensors on the DPF and SCR units under the truck, NOx sensor, and pretty much every thing Rawze explains to do during an EGR tune up. The truck is still regening too much, like every 300 miles. Kinda puzzled on what else could possibly be malfunctioning. Any thought or ideas?