P0449
Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
Generic code
Auxiliary Emissions Control
Low severity
Hard repair
Free on OBD DashX
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What P0449 means
- The fault code P0449 indicates that there is a problem with the circuit controlling the vent valve or solenoid for the evaporative emission control system. This can cause issues with the vehicle's emissions and may trigger the check engine light.
Possible symptoms
- Illuminated check engine light
- Issues with passing emissions tests
- Fuel smell coming from the vehicle
- Rough idle or stalling (in severe cases)
Possible causes
- Faulty vent valve or solenoid
- Corroded or damaged electrical connections in the circuit
- Failed evaporative emission control system pressure sensor
- Failed engine control module (ECM)
Related parts
- Evaporative Emission (EVAP) System: The EVAP system prevents petrol vapors from escaping into the atmosphere from the fuel tank and fuel system. Problems in this car's flow valve will lead to fuel loss
Possible solutions
- Replace the vent valve or solenoid
- Check and repair any damaged or corroded electrical connections
- Replace the evaporative emission control system pressure sensor if necessary
- Replace the engine control module (ECM) if necessary
Free on OBD DashX
P0449 on OBD DashX
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