tdi problem boosting

[*tell*]

 if have got myself a tdi estate 
have had a code come up of 00575.
i have replaced all vacum tube and the n75 valve.
cleared the code after try all off these but the problems still there.
it a 1z engine code and it done 150 000 miles.
if your on the motorway going up a hill it will stop boosting at 60 and on the
flat at 75?
 
thanks tell

[saul79]

check to see if the wastegate is seized it wont boost if its seized try tapping the arm off it and see if it frees off .When you rev it is should move freely if it dont its turbo time

[*tell*]

cool will give this a go never own a turbo'd car (diesel  )
 

[scoobydoo]

did you have any luck with this - i have similar problem

[Rmachines]

Same problem ere,   Common too!   Ther are a few things to try.

You say you replaced the pressure hoses,  Check the one that comes off the intake manifold pipe to the ECU (it actually goes inside the ECU)  Also if thats ok there is a small stretch of pipe inside the actuall ECU that can wear out, replace that too.

Other than that im not to sure.