What is MID 134 & How to Solve It?

What is MID 134:

MID 134 refers to a fault in the Exhaust Gas Recirculation (EGR) System. This fault code is triggered when the ECM detects a malfunction in the EGR system, which may affect exhaust gas flow and lead to poor engine performance or increased emissions.

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Why This Happens:

• Faulty EGR valve.
  
• Shorted or damaged wiring in the EGR system circuit.
  
• Blocked exhaust system affecting EGR valve operation.
  
• Loose or corroded connectors.
  
• ECM failure to process the EGR system data properly.
  
  

How to Fix It:

1. Inspect the EGR valve for malfunction or blockage.
   
2. Test the EGR system to ensure proper voltage and operation.
   
3. Check wiring and connectors for visible damage or corrosion.
   
4. Replace the faulty EGR valve or sensor if necessary.
   
5. Inspect the exhaust system for blockages or contamination affecting EGR function.
   
   

How to Avoid It Before It Happens:

• Regularly inspect the EGR valve and exhaust system.
  
• Clean or replace the exhaust system components as needed.
  
• Keep connectors clean and free from corrosion.
  
• Perform routine diagnostic checks to monitor EGR system performance.
  
• Clue’s Equipment Maintenance services help monitor EGR valve health and prevent issues from affecting engine operation.