What is SPN 247 FMI 14
- SPN 247: Refers to a fault related to the fuel temperature sensor, indicating that the temperature readings of the fuel are either too high or too low.
- FMI 14: Indicates that the sensor is providing a low voltage signal, meaning the ECM is receiving lower-than-expected data from the sensor.
Together, SPN 247 FMI 14 indicates a problem with the fuel temperature sensor, where the ECM is not receiving proper temperature data, potentially affecting fuel system performance.
Why It Happened
This fault code is commonly caused by:
- A malfunctioning or faulty fuel temperature sensor.
- Wiring issues or poor connections between the sensor and ECM.
- Low fuel temperature, which could cause incorrect readings from the sensor.
- Contamination or corrosion in the sensor or connectors.
How to Resolve It
To resolve SPN 247 FMI 14:
- Inspect the fuel temperature sensor for faults and replace if necessary.
- Check wiring and connections between the sensor and ECM for damage or corrosion.
- Test the fuel system to ensure the temperature sensor is reading accurately.
- After repairs, clear the fault code and restart the engine to confirm the fix.
How to Avoid Before It Happens
To prevent SPN 247 FMI 14:
- Regularly inspect the fuel system and sensor.
- Ensure the fuel temperature sensor is properly calibrated and clean.
- Use Clue to monitor fuel temperature and receive alerts when readings go outside the expected range.
