Audi a4 runs in to limp mode when turbo is boosting constantly on a straight!

[Chrissy a4]

whilst i am driving along at straight bit of road above 2000 revs for a while the turbo runs into limp mode and loses power until ignition has been switched off then back in again.

 

[Chrissy a4]

Can anyone help me with my Audi a4 1.9 pd engine! would be much appreciated.

 

[Broken Byzan]

sticky vanes in the turbo VNT Mechanism will cause that, as well as possible leaky boost pipes and limp mode licking in due to overboost

 

[marktdisport]

sounds like it needs the old mr muscle clean

 

[PAULF]

Try here,

Un-Sticking Your TDi VNT Turbo Vanes.....

or

WOW !!!!! MR MUSCLE TURBO CLEANNING