Possible Causes
- Purge solenoid valve malfunction.
- Change Over Valve (COV) in EVAP system leak detection pump malfunction.
- Charcoal canister malfunction.
- Catch tank malfunction.
- Fuel cap malfunction.
- Fuel tank malfunction.
- Fuel pump unit poor seal.
- EVAP hose damaged or loose.
- EVAP pipe damaged.