Failing Thrust Sensor Symptoms

I was wondering who has had a failed thrust sensor and what were the symptoms when it was going out. The boost is jumping all over in the high RPMs and am thinking that the car computer is sending more fuel to compensate making the boost fluctuate around redline. It is very sporadic and only does it sometimes. Its not throwing a CEL now but wondering if someone can chime in with some info.

I threw this code.
012555 - Low Pressure Fuel regulation: Fuel Pressure Outside Specification
P310B - 004 - No Signal/Communication - Intermittent

Other than that, no symptoms at all.

i had this code other day in la driving along with a few misfire codes, i did some vag com logs and everything checked out ok, im with u on the sparatic shit these cars sensors feel

These cars are so damn fussy... it drives me nuts

^^yes indeed they are. they are very tempermental...