[ollietdi]

2001 tdi 255,000 km. power loss intermintent, sometimes can run for 50 km before problem, sometimesw less then 1 km. fault code over boost. mechanic stated that the turbo is clogged-carbon build-up-should replace.another mechanic said that the intake manifold is possibly clogged and we should try that first. turning the key off and on solves the problem temp-replaced the solenoids n75, n45? and the maf. now going through the posts.

 

[Seatman]

The turbos do get clogged but they clean up nice but it couold be a number of other things, have you had a look in the limp mode faq? That's what you're getting, limp mode, a clogged manifold usually just gives permanent low power.

http://www.myturbodiesel.com/1000q/multi/limp-mode-TDI-fix.htm

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