Hi Andy
TDI cant see it being timing or compression because it would not go from no power to full by switching ign off n on immediatly
as I have said when mines going ok, ITS GOING!! 130mph!
Dont think mine has anything like that power but the part that concerns me the most,for now apart from the going into limp mode, is the vibration/rumbling engine noise as speed increases UNDER LOAD. IT does not do this when stationary or under no load.

and 'dissappeared'
(weird that nobody 'knows' where it goes!
) but its worth a few bob to somepeople !!


, that would be spot on with my diagnoses because it has def got worse in last few mths and as the turbo goes through its extreme temp change the vanes stick causing over boost the MAP senses overboost and then you get limp mode, I have also noticed an increased fuel con. heres a quote from a dif forum