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P0299 Diagnostic Trouble Code Discussion for March 2011

Turbocharger Engine Underboost

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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2006 Volkswagen Jetta GLI 2.0L Hesitation, MIL Lamp on VIN: 3VWWJ71K56
P0299: Boost Pressure control range not reached. Car came in with no power, had code P0299, found TSB to check Recirculation valve on Turbo, Removed the valve it had the updated valve already & bench tested ok, but when the valve was removed there was a large amount of oil that poured out of the Turbo. I...
March 16, 2011
2006 Mercedes-Benz B200 Turbo 2.0L No power VIN: WDDFH34XX6
P0299: turbo underboost. Customer is saying he is loosing power intermittantly. Seems to drive fine for us and we have never duplicated symptoms. When turbo was orginally replaced, car had not power whats so ever. Car seems to drive fine but would not call it a rocket, but have never...
March 22, 2011
2005 Ford F-350 Super Duty XLT 6.0L No Start VIN: 1FTWX31P05
P0299: Turbo/Supercharger Under-Boost. No start hot, EOT at 230f. while cranking I have ICP at 730 psi, IPR at 15%, ficm sync is good, CKP/CMP sync is good, No biased sensors. It has a sticking turbo right now, other thaan that it runs great when it runs. it starts fine cold everytime. Thanks for ...
March 30, 2011