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P0449 Diagnostic Trouble Code Discussion for January 2017

EVAP Vent Solenoid Control Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0449
Help Request Posted
2007 GMC Yukon Denali 6.2L Poor Idle Quality, MIL Lamp on VIN: 1GKFK63887
P0449: EVAP Vent Solenoid Control Circuit Malfunction. ... check engine light on. initially the truck had evap solenoid code (P0449), so i checked solenoid and it was fried. im getting 12 volts straight from PCM. i replaced soloenoid, now i hear solenoid opening correctly.the truck runs perfect, no check light on....
January 05, 2017