Automotive cummins 2015 6.7L in a ram

[mikkhh]

Are you the original owner and can therefore stay for sure that the programming is stock?


How many hours/miles on it? What kind of life it has lived? Towing or just cruising around? Is it a work truck? Lots of idling? Does it get driven around daily?

You mentioned DPF sensor. It was replaced with genuine part? Or aftermarket part, that most likely is faulty right out of the box?

You mentioned derate counter, for what the counter is - SCR or DPF?

Do you have in site or any other diagnostic to see fault codes and parameters regarding DPF? Does it say that DPF is full? Ash level? Soot level? What kind of differential pressure reading you have for DPF with engine off, idling, revved at standstill?


My take on it would be still the same on any more than five years old machine, before I would even dig any further would be CHECK TAILPIPES for soot, then clean intake, egr cooler, replace IMAP, EMAP and differential pressure sensor (only if there is no soot on tailpipes, else dpf needs replacing or deman if you live overseas).