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P0449 Diagnostic Trouble Code Discussion for October 2010

EVAP Vent Solenoid Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0449
Help Request Posted
1999 Pontiac Grand Prix GT 3.8L MIL Lamp on VIN: 1G2WP52K4X
P0449: EVAP Vent Solenoid Control Circuit Malfunction. P0440 & p0449 keep setting after a couple minutes at idle. Already replaced fuel cap because the seal had visible cracks and was original. Also performed a smoke test found no leak in the system. Replaced what I thought was the fuel tank vent solenoid in t...
October 04, 2010
2006 GMC Envoy XL SLE 4.2L MIL Lamp on VIN: 1GKET16SX6
P0449: Evap vent solenoid ckt.low. Any suggestions ? for this code po449
October 26, 2010