P1448
EVAP Canister Vent Control Valve Open
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Smell of gasoline in the fuel tank area
- Unstable engine idling
- Dips during acceleration
Causes
- Canister ventilation valve malfunction
- Open or short circuit in valve control circuit
- Poor contact in valve connector
- Mechanical valve jamming
- Problems with the engine control unit
How to Fix
- Check valve control circuit integrity
- Check valve resistance (must meet specification)
- Clean or replace the canister ventilation valve
- Check the EVAP system for leaks
- Reset the error and check if it returns