What is MID 35 & How to Solve It?

Understand what MID 35 means, its main causes, and practical steps to fix it so your equipment runs efficiently.

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Table of Content

What is MID 35:

MID 35 refers to an issue with the Exhaust Gas Recirculation (EGR) Valve. This fault occurs when the ECM detects that the EGR valve is malfunctioning or its signal is out of range, leading to poor exhaust flow regulation and reduced engine performance.

Why This Happens:

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

How to Fix It:

  1. Inspect the EGR valve and wiring for visible damage.
  2. Test the EGR valve to ensure it is functioning correctly.
  3. Check the exhaust system for blockages or contamination.
  4. Replace the faulty EGR valve if necessary.
  5. Inspect the exhaust system for issues affecting EGR flow.

How to Avoid It Before It Happens:

  • Regularly inspect the EGR valve and exhaust system.
  • Clean the exhaust system regularly to maintain EGR performance.
  • Keep connectors clean and free from corrosion.
  • Perform diagnostic checks to monitor EGR valve health.
  • Clue’s Equipment Maintenance services monitor EGR systems to prevent malfunctions before they impact engine performance.

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