Powertrain
generic / SAE
P0449
Evaporative Emission System Vent Valve/Solenoid Circuit Malfunction
A general electrical fault was detected in the EVAP vent valve/solenoid control circuit. Without a working vent valve the EVAP leak test cannot complete and the system may remain not-ready.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / 49
Possible causes
- Vent valve electrically failed high
- Wiring or connector fault medium
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Inspection / repair
- Difficulty: easy
- DIY: possible
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References
sae:J2012