CM2250 ISX15 Turbo Chuffing

[yionkin81]

I will take boots off and inspect CAC.

DPF was previously replaced by original owner with OEM. I didn't take it off to inspect or manually clean it. Don't have that ability right now.

#1. Truck is not deleted. Everything is intact and functioning, no codes.

#2 and #3 I am not sure on this. How can I check this? My SN is 954243 Engine from factory is 605HP 2050Torque

Can I download latest software if required?

Thanks