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P0299 Diagnostic Trouble Code Discussion for March 2009

Turbocharger Engine Underboost

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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2004 Volkswagen Passat GLS 2.0L MIL Lamp on VIN: WVWPE63B74
P0299: Control limit not reached. This TDI boosts but not enough. Using VCDS at idle it's about 100 millibars short of what's specified and underway the gap between specified and actual boost widens until the code comes on at about 50 MPH. The variation at that point is about 500 millibars. ...
March 02, 2009
2005 Dodge Sprinter 3500 2.7L Cuts out, power loss VIN: WD1PD94425
P0299: lack of boost. Customer has owned this since new. He says that climbing a hill (we are in the mountains) it will loose power and almost feels like a turbo. if he pulls over and shuts it off or stops, then takes off a again then everything is fine. He did say that he has hear...
March 12, 2009