on May 7, 2009, 1:06 pm, in reply to "Re: VW Golf GTI Loss of turbo boost. Fault Code P1279"
"The car does not loose any boost with the dump valve disconnected so I would think this discounts any issues with the turbo or MAF. "
Are you talking about the dump valve or the wastegate?
Dump valve? It's a vacuum operated dump valve, something is commanding it to dump the boost. So the solenoid is being operated by the ECU, which in turn is being driven by the sensors. So that doesn't eliminate MAF?
Has the vehicle been remapped? Jist a thot? 
Message Thread 
VW Golf GTI AUM 2001 - Loss of turbo boost, fault Code P1279 - Fixed # - Mark Robins May 6, 2009, 4:24 pm
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