Overboost fault code but n75 and turbo vanes seem ok

[Bert514]

I have a 2007 passat 2.0l diesel with a bkp engine and am getting an overboost code and limp home particularly when towing up hill. Aftrer reading up on it I thought it was sticking torbo vanes but they are moving ok. How can I test the manifold pressure sensor? Has anyone got any other ideas? Can the actuator adjustment go out or need resetting? Thanks for any help you can give

[Crasher]

Even if the vanes move they can stick due to temperature and air speed changes, 99% of the time overboost is a sticking vanes

[mickeybo]

The turbo pressure control solenoid & the exhaust gas cooler solenoid are inter connected on this bkp engine code. I would be checking you vac reading at the turbo pressure control which should read approx 26/27 inhg

[Bert514]

Thank you for your help on that.

[Bert514]

Thanks for your help and information.