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P0299 Diagnostic Trouble Code Discussion for April 2008

Turbocharger Engine Underboost

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Trouble Ticket Help Requests for DTC P0299
Help Request Posted
2004 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK29224
P0299: Turbocharger Engine Underboost. ... Also after driving for a while code P0299 also appears. I followed diagnostics and leads me to replace ECM, but I'm certain that's not the cause. I commanded T/C solenoid with scan tool while using a test light as a jumper at solenoid connector, and the li...
April 08, 2008