Just to add more info to this thread. My rear turbo inlet pipe started to slip, as it was not anchored to that metal bracket properly. I think it was from turbo installation from the dealer. My indy shop got everything sorted, but it was 3-4 hours of labor to move the exhaust/downpipes out of the way to make that repair.
This caused me to get
2ADF idle control speed DTC and fuel mixture issues.
Also caused Fuel Trims of 20%+