Hi, I mapped my golf 2.0 TDI from a piece, and right from the beginning I did a log with vag and I have seen that the value of the mass air flow sensor to get the rpm drop dramatically. For example, to 4000 rpm, the turbine is still 1.3 bar but the maf marks around 1000mg/stroke. Should not mark 500x2.3=1150? Then one other thing, the maximum value is about 2300giri and turbine to 2.6 bar, and at around 1200mg/stroke. Is this normal or is something wrong?