Egr valve

[Gill Oruga]

Record the stationary regen and go from there. Make sure you record all parameters at one sample per second.

Also, FYI that engine qualifies for a new SCR catalyst regardless of mileage (Campaign C2036) They normally cover the sensors that are damaged when removing them as well.

If your turbo/turbo actuator go bad you qualify for a free replacement at less than 435k miles.
Or you've replaced your turbo or turbo actuator out of warranty and paid out of pocket, at less than 435k miles you qualify for a reinbursement. (TRP T2258)

It's just finding a good dealer that wants to do the work under warranty is the issue. Most of them will turn you away or tell you that no parts are available.