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P0299 Diagnostic Trouble Code Discussion for August 2013

Turbocharger Engine Underboost

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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2005 Ford F-350 Super Duty King Ranch 6.0L MIL Lamp on VIN: 1FTWW30P15
P0299: Turbo/Supercharger Under-Boost. This 05 Power Stroke 6.0L has a code P0299 Turbo under boost. According to the freeze frame when the code set the engine was at idle which is strange since the turbo is not working at idle. My question is how do I check the cause of this code using a master te...
August 14, 2013
2005 Chevrolet Silverado 2500 HD 6.6L Excessive Emissions, Hesitation, Poor Fuel Economy VIN: 1GCHK232X5
P0299: Turbocharger Engine Underboost. Thank you to everyone who tries to help me here. I have this Duramax that is a real pain. I can find many cases of this same issue on the forums all over the internet but none of them have the solution. This truck is a dog off the line while warming up. Once i...
August 15, 2013
2005 Ford F-250 Super Duty King Ranch 6.0L Poor Idle Quality, Surge, Stall VIN: 1FTSW21P65
P0299: Turbo/Supercharger Under-Boost. Runs good under load, after hard run, will idle up and down for a while. Also after revving up in park it will idle way down like running out of fuel and then pick back up. Pulled egr valve and it has some carbon on it but not much, ran with egr removed and ra...
August 19, 2013