EVAP System Purge Line Performance
A general performance fault on the EVAP purge line - flow does not match the requested rate, without specifying which segment. Usually a partially blocked line, a stuck purge valve, or a leak that decouples flow from valve commands.
Affected components
- Evap purge line
- Evap purge valve
Common causes
- High likelihood: Purge line partially blocked
- Medium likelihood: Purge valve responds slowly
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
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.