What is MID 126 & How to Solve It?

Discover what MID 126 means, common causes behind it, and how to fix it. Follow our simple steps to get your equipment running properly again.

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Table of Content

What is MID 126:

MID 126 refers to an issue with the Fuel Injector Control Circuit. The ECM detects an abnormal signal from the injector control module, leading to improper fuel injection timing, misfires, or poor engine performance.

Why This Happens:

  • Faulty Fuel Injector Control Module (FICM).
  • Shorted or damaged wiring in the injector control circuit.
  • Loose or corroded connectors.
  • Power supply issues affecting the FICM.
  • ECM failure to process data from the FICM correctly.

How to Fix It:

  1. Inspect the Fuel Injector Control Module (FICM) and wiring for visible damage.
  2. Test the FICM for proper voltage and functionality.
  3. Check connectors for tightness and cleanliness.
  4. Replace the faulty FICM if necessary.
  5. Ensure stable power supply to the FICM and ECM communication.

How to Avoid It Before It Happens:

  • Regularly inspect the FICM and wiring for damage or wear.
  • Keep connectors clean and free from corrosion.
  • Perform routine diagnostic checks to monitor FICM performance.
  • Ensure stable power supply to the FICM and ECM communication.
  • Clue’s Fuel Management services help monitor fuel injector control systems and prevent issues before they affect engine operation.

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