2002 A3 1.9 tdi (130ps) overboost & limpmode - suggestions ?

[brasiliangringo]

Nasty.. im just trying to understand this..

But if mine is not over-boosting at the redline how can the turbo over spool and blow up? Its overboosting on deceleration because of the sticking vanes which causes a time delay and consequent over boost at given RPMs on decel but its not overspooling beyond its redline (whatever it is) so how can it damage ?

[Crasher]

If the vanes are jammed open and there is sufficient gas speed, the turbo can still overspeed and then ECU may not be quick enough cutting the fuel to catch it.

[brasiliangringo]

Ive been away for a while - turned out it was a broken front exhaust section that was causing the code / over boost issue etc.. happy days, nothing too serious then