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.
- Charcoal canister malfunction.
- EVAP air filter plugged.
- Fuel Tank Pressure (FTP) sensor malfunction.
- Plugged EVAP hoses.
- Purge solenoid valve malfunction.