Passat Engine light on loss of power.

[jpivey]

I've got a 54 plate Passat engine light came on yesterday engine seems to have lost all the turbo boost, still runs ok though any thoughts as to what it could be. Thanks

[Tame Technician]

Have the fault memory read, and search overboost.

Is it any better (has teh boost come back) after turning the ignition off then starting again??