My brother bought a passat tdi 130 (2001), but its got no power in between 2k-3k, after that its ok, but not as it should be.
Did a scan with VCSD, 1 Fault Found:
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-10 - - - Intermittent
Where would you start with this? Has anybody else had this problem?