What is MID 124:
MID 124 refers to an issue with the Fuel Temperature Sensor. The ECM detects that the signal from the sensor is outside of the expected range, which can lead to incorrect fuel temperature readings, affecting fuel delivery and engine performance.
Why This Happens:
- Faulty fuel temperature sensor.
- Shorted or damaged wiring in the sensor circuit.
- Corroded or loose sensor connectors.
- Incorrect power supply affecting sensor output.
- ECM failure to process the sensor’s signal.
How to Fix It:
- Inspect the fuel temperature sensor for damage or malfunction.
- Test the sensor’s voltage and resistance to ensure it is within manufacturer specifications.
- Check wiring and connectors for visible damage or corrosion.
- Replace the faulty sensor if necessary.
- Ensure proper voltage supply to the sensor and ECM.
How to Avoid It Before It Happens:
- Regularly inspect the fuel temperature sensor and wiring.
- Keep connectors clean and free from corrosion.
- Ensure stable voltage supply to the sensor.
- Perform routine diagnostic checks to monitor sensor performance.
- Clue’s Fuel Management services provide real-time monitoring of fuel temperature to prevent sensor issues before they affect engine operation.
