EVAP System Purge Control Valve A Performance Stuck Open
EVAP System Purge Control Valve A Performance Stuck Open: the component is electrically intact but its response does not match the command.
Affected components
- Evap purge valve a
Common causes
- High likelihood: Debris on valve seat prevents full closing
- Medium likelihood: Return spring weakened
- Low likelihood: Carbon or debris buildup preventing free movement
Possible symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.