What is CID 161 & How to Solve It?

Understand CID 161, its causes, and follow simple steps to resolve the issue and ensure your equipment operates efficiently.

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Table of Content

What is CID 161:

CID 161 refers to a problem with the vehicle's fuel system, specifically the fuel shutoff valve. The ECM detects that the valve is malfunctioning, causing fuel flow issues and potentially leading to engine stalling or failure to start.

Why This Happens:

  • Faulty fuel shutoff valve.
  • Shorted or damaged wiring in the control circuit.
  • Loose or corroded connectors.
  • ECM failure to process the valve’s data.
  • Mechanical failure preventing proper valve operation.

How to Fix It:

  1. Inspect the fuel shutoff valve for damage or malfunction.
  2. Test the valve for proper operation.
  3. Check wiring and connectors for visible damage or corrosion.
  4. Replace the faulty valve if necessary.
  5. Ensure ECM is receiving proper signal from the valve.

How to Avoid It Before It Happens:

  • Regularly inspect the fuel shutoff valve and wiring.
  • Perform routine checks of the valve and connectors.
  • Ensure proper communication between the ECM and fuel shutoff valve.
  • Clue’s fuel management services track fuel shutoff systems and prevent malfunctions before they affect engine operation.

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