EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
The EVAP fuel-vapor temperature sensor signal jumps or drops out intermittently — usually a connector or chafed wire.
Affected components
- Evap fuel vapor temp sensor
- Evap harness
Common causes
- High likelihood: Intermittent connector or chafed wire
- Low likelihood: Connector with intermittent contact under vibration
- Low likelihood: Harness routed against vibrating component
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.