EVAP System Pressure Sensor/Switch A Circuit
A general electrical fault on EVAP pressure sensor/switch A — used to monitor canister pressure during leak-detection diagnostics.
Affected components
- Evap pressure sensor
Common causes
- High likelihood: Sensor failed
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.