Reduced exhaust braking after demandate

[Rawze]

If your able to back up/restore the ecm yourself, then take it on a test drive and screen record what its doing (using the 'OBS studio' software).

While recording, in Insite, monitor the following live data ...

== the engine brake status for stage 1,2,3
== the turbo position commanded
== the turbo position measured.
== Boost level.
== Exhaust pressure level.
== fuel pedal position.

.. then flash the clean factory programming back in it temporarily and do the same recording and same test drive to see if the engine brake and turbo are acting similar.