Input Needed. 2002 Jetta TDI overboost and MAF requested < MAF Actual

I ran a diagnostic on my friends car last night and got some interesting results. Moral of the story is he is both overboosting (no limp mode or anything of the sort) and the MAF requested value is significantly less than the ACTUAL MAF values. Oddly enough, the car seems slightly low on power despite the extra boost. Any thoughts?

Edit: Here are the plots

Nothing? Not even comments on my sweet graphing skills?

have you tried unplugging your MAF and see if things improve??

just a thought.

Didn't have time to unplug the MAF at the time, I'm just looking for ideas and suggestions here to see what others think, I'm taking it out for a run tonight with the MAF disconnected and checking out the numbers.

The MAF readings follow the boost. Extra boost= extra actual mass air flow.

It looks to me as if you may need to adjust the turbo vane actuator motor shaft length. Lengthen the shaft, which increases the spring preload, and increases the amount of vacuum that you need to move the shaft.

I would set it to crack (start moving initially) at 5" hg mercury, for starters.

Canadian Grizzly has an excelent diagnosing thread on this particular overboost issue. It is titled "diagnosing and fixing limp mode for A4 1.9TDI. I think this is the problem that you have.