There is a Field Service bulletin on my 2012, that extended the replacement of that sensor.
Ask them point blank because I have a feeling you just paid for their next pizza party.
Mark
BD Diesel makes an exhaust brake for the 6.7. However: the earlier model rigs have a timer on the system that senses back pressure, and if it isn’t resolved in 1 minute or less it will throw a code, and if still there it will go into reduced power mode and eventually shut down. I have found an...