Possible Causes
WARNING: This page is about a different car, the 2003 Mazda Protege5 and 2003 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.
- Canister Drain Cut Valve (CDCV) malfunction.
- Catch tank malfunction.
- Charcoal canister malfunction.
- Check valve malfunction.
- Cracked fuel tank.
- EVAP hoses damaged or loose.
- Fuel Tank Pressure (FTP) sensor malfunction.
- Loose, missing or defective fuel filler cap.
- Poorly installed fuel tank components.
- Purge solenoid valve malfunction.
- Rollover valve malfunction.