What is FMI 8 & How to Solve It?

What is FMI 8:

FMI 8 refers to Abnormal Rate of Change Detected. The ECM identifies that the rate at which the sensor’s value is changing is abnormal, potentially leading to unreliable data and system malfunctions.

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Why This Happens:

• Faulty or malfunctioning sensor.
  
• Signal interference or noise in the circuit.
  
• Damaged wiring or poor connections.
  
• Environmental factors affecting sensor readings.
  
  

How to Fix It:

1. Inspect the sensor and wiring for visible damage or malfunction.
   
2. Test the sensor’s response to changes in conditions.
   
3. Check for signal interference or noise in the circuit.
   
4. Repair or replace damaged wiring or components.
   
5. Ensure ECM is processing data correctly.
   
   

How to Avoid It Before It Happens:

• Regularly inspect sensors and wiring for damage.
  
• Shield sensor circuits from external interference.
  
• Monitor sensor outputs for abnormal behavior.
  
• Clue’s reporting & analytics services monitor sensor signals and detect abnormal changes in data before they impact system performance.