P1440
Purge Valve Stuck Open
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine Light Is On
- Increased fuel consumption
- Unstable engine idling
- The smell of gasoline in or around the car
- Problems starting the engine
Causes
- Stuck EVAP purge valve
- Open or short circuit in valve control circuit
- Damaged valve wiring harness
- Engine control unit malfunction
- Mechanical damage to the valve
How to Fix
- Check the purge valve control circuit for opens and shorts
- Test valve coil resistance
- Check the operation of the purge valve using a scanner or applying voltage
- Replace faulty purge valve
- Clear error codes and check if the fault returns