What is MID 20 & How to Solve It?

Learn what MID 20 means, its main causes, and how to fix it quickly to keep your equipment performing at its best.

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Table of Content

What is MID 20:

MID 20 refers to a problem with the Fuel Injector Control Module (FICM). The ECM detects that the FICM is malfunctioning or sending out-of-range signals, which can lead to improper fuel injector operation, poor fuel economy, and engine stalling.

Why This Happens:

  • Faulty FICM.
  • Shorted or damaged wiring in the FICM circuit.
  • Loose or corroded connectors in the FICM circuit.
  • Power supply issues affecting the FICM.
  • ECM misinterpretation of the FICM signal.

How to Fix It:

  1. Inspect the Fuel Injector Control Module (FICM) and wiring for visible damage or malfunction.
  2. Test the FICM to ensure it is functioning correctly.
  3. Check connectors for cleanliness and tightness.
  4. Replace the faulty FICM if necessary.
  5. Ensure stable power supply and ECM communication with the FICM.

How to Avoid It Before It Happens:

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

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