What is FMI 20 & How to Solve It?

What is FMI 20:

FMI 20 refers to invalid or inconsistent data from sensor. The ECM detects that the sensor is providing data that is either inconsistent or outside the expected values, leading to potential performance problems.

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Why This Happens:

• Faulty or malfunctioning sensor.
  
• Wiring or connector issues affecting data transmission.
  
• Software failure to interpret sensor data.
  
• Calibration issues with the sensor.
  
• Environmental conditions affecting sensor performance.
  
  

How to Fix It:

1. Inspect the sensor for damage or malfunction.
   
2. Test the sensor’s output against manufacturer specifications.
   
3. Check the wiring and connectors for visible damage.
   
4. Recalibrate the sensor if necessary.
   
5. Replace the faulty sensor if it continues to send inconsistent data.
   
   

How to Avoid It Before It Happens:

• Regularly test sensors for accurate data output.
  
• Perform recalibration and diagnostic checks.
  
• Monitor wiring and connectors for damage or wear.
  
• Clue’s equipment maintenance services track sensor performance and prevent issues before they cause performance degradation.