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P0299 Diagnostic Trouble Code Discussion for June 2013

Turbocharger Engine Underboost

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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2006 Audi A4 2.0L Excessive Emissions, MIL Lamp on, Unresponsive Turbo VIN: WAUAF78E26
P0299: Boost Pressure Regulation Control Range Not Reached. ... technicians! A customer had her car towed in to my shop with a no-start condition. Upon inspection I found that the timing chain in the rear of the cylinder head had broke off. The customer and I agreed on replacing the head with a re-manufactured one from...
June 11, 2013
2007 GMC Sierra 2500 HD SLT 6.6L MIL Lamp on, black smoke VIN: 1GTHK29677
P0299: Turbocharger Engine Underboost. My understanding is that the DPF filter is no good and must be replaced since the regen wont complete and the soot mass readings are so high. Looking for a second opinion. I dont believe the truck was smoking like this until I replaced the EGR cooler but i can...
June 21, 2013