Just pulled a tough hill, towing my about 17k 5ver, pushing it hard to get past a wide load truck and the turbo went to about 20,000 or so... pretty loud wind up noise that is new to me. Wondered if ...
we really need to know what the 20,000 stands in relation to. Maybe you forgot an extra zero? Were you looking at boost with the metric setting (Showing Kilo pascals), 200,000 kpascals is equivalent to 29psi which is about right.