Hi, my car has a flat spot until 2200 rpm, when it hits 2200 rpm in 2nd gear it goes like a train. Thought to change the egr valve but first I blanked it off completely so that no exhaust gass enters the inlet and the flat spot is still there!

I have some OP-COM live data that I took when car was stationary. First is throttle to the floor, second is throttle gradually pushed.

I tryed running the car with the MAF sensor disconnected and the car is less responsive. It does not accelerate past 2000 rpm in 3rd no matter what.

Also I'm worried about the big difference in the commanded boost pressure and the real boost pressure.
I would be so grateful if someone has some live engine data to compare, or if someone could look at the numbers and see if they're OK.

air flow.jpg

boost.jpg

Live data xls:
diagnoza 2 oct 2009.rar