EVAP Fuel Vapor Temperature Sensor Circuit Low Voltage
The EVAP fuel-vapor temperature sensor signal sits below the lower plausibility limit — short to ground or short between signal and ground inside the sensor.
Affected components
- Evap fuel vapor temp sensor
Common causes
- High likelihood: Short to ground on signal line
- Low likelihood: Connector pins corroded - high contact resistance
- Low likelihood: Harness chafing through insulation
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.