OBD-II Code · Emissions
P0449
EVAP Vent Solenoid Circuit
low severitySafe to drive$100-$300
Vent solenoid circuit fault.
Common symptoms
- CEL
Likely causes
- Failed solenoid
- Wiring
Where to start
- Try the cheapest cause first. Start by checking: failed solenoid.
- Cost & scope. $100-$300
- If the code returns after the fix: escalate to a shop or scanner with live-data and freeze-frame. A code that re-sets means the underlying fault is still there.
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