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P0299 Diagnostic Trouble Code Discussion for September 2010

Turbocharger Engine Underboost

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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2005 Ford F-250 Super Duty XLT 6.0L MIL Lamp on VIN: 1FTSX21P75
P0299: Turbo/Supercharger Under-Boost. ... power, or drivability problems, but the MIL is coming on now every 150 miles or so with P0299 as the only stored code. First saw P0299 in late 2008 @ 118,000 miles but was set with P2287 (ICP fault. Replaced ICP sensor and wiring pigtail at that time to fi...
September 21, 2010
2004 Audi A4 Quattro 1.8L MIL Lamp on VIN: WAULC68E74
P0299: turbo super charger underboost. Hello and thanks in advance for any help. What I have here is a 2004 Audi A4 Quattro 1.8 Turbo I don't see alot of euro cars out here (old customer new car) and dont have the euro package for my scanner a code PO299 or OE code # 16683 for an 04 Alldata gives m...
September 22, 2010
2003 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWMD63B73
P0299: turbo underboost. hear is the story. customer bailed on this car when oil light started coming on. cleaned blocked sump etc.. car started and quiet as a mouse. roadtest and car low on power. like no turbo and mil returned. looked for blockages and found excessive oil in inducti...
September 23, 2010
2004 Volkswagen Golf GL TDI 1.9L Hesitation VIN: 9BWGR21J94
P0299: regulated boost pressure not achieved. ... turbo would not hold vacuum on this car. I checked vacuum signal through the N75 solenoid valve and it passed vacuum when tested and actuated with scan tool, so I assumed the control section was ok.. So P0299 underboost...variable vane actuator not holding...
September 23, 2010