Another overboost thread (different from the other one)

[Pocket]

Ok, I can't figure this out.

I can run up to 30 psi of boost, and have no overboost code. Yet yesterday I was hitting at least 35 psi of boost at the track (might have been more, my gauge only goes up to 35 psi) and it set the overboost code every time.

I don't get it. First, I thought the MAP sensor was already well out of it's range before 30 psi, so why would it trigger at over 30 psi, but not at or just under? Second, where is the switch to just completely disable any ability for it to register a trouble code for overboosting? I thought I took care of that already, but apparently not.