HVACDIESEL
05-18-2005, 08:23 PM
what is it 2005 d-max.mbrp cool duals and afe drop in air filter:confused:
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GMCSID 05-18-2005, 08:32 PM P0299 is an underboost code. P0401 P0404 and P0299: EGR and Boost Trouble Codes Intermittent EGR codes and Boost codes that set with no customer driveability concerns are under investigation. The investigation is leading towards a calibration related fix. At this time there is no release date for a new calibration. If the codes can be duplicated and the codes are set with a driveability symptom, inspect the EGR for sticking. | ||