What is SPN 3364 FMI 10 & How to Solve It?

What is SPN 3364 FMI 10:

SPN 3364 FMI 10 indicates a fault in the Exhaust Gas Recirculation (EGR) System. This fault is typically related to the EGR valve sensor circuit, and FMI 10 suggests a voltage issue that affects the proper operation of the EGR system, leading to improper exhaust gas flow and potentially causing poor engine performance and increased emissions.

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Why This Happens:

• Faulty EGR valve.
  
• Damaged or shorted wiring in the EGR system circuit.
  
• Loose or corroded EGR valve connectors.
  
• Blocked or malfunctioning exhaust system.
  
• ECM misinterpretation of EGR system data.
  
  

How to Fix It:

1. Inspect the EGR valve and its wiring for damage.
   
2. Check the wiring and connectors for visible damage or corrosion.
   
3. Test the EGR valve’s control circuit for proper voltage.
   
4. Replace the faulty EGR valve or sensor if necessary.
   
5. Ensure the exhaust system is free from blockages or contamination.
   
   

How to Avoid It Before It Happens:

• Regularly inspect the EGR valve and wiring.
  
• Keep connectors clean and free from corrosion.
  
• Perform routine exhaust system checks to ensure it is functioning correctly.
  
• Monitor EGR system health using diagnostic tools.
  
• Clue’s Equipment Maintenance services track the health of EGR systems to detect and prevent potential malfunctions.