What is CID 137:
CID 137 refers to an issue with the fuel system, particularly with the fuel pressure regulator. The ECM detects an out-of-range signal from the regulator, which could lead to incorrect fuel pressure and poor engine performance, stalling, or reduced fuel economy.
Why This Happens:
- Faulty fuel pressure regulator.
- Shorted or damaged wiring in the regulator circuit.
- Loose or corroded connectors.
- Low fuel pressure due to malfunctioning fuel pump.
- ECM failure to properly process fuel pressure data.
How to Fix It:
- Inspect the fuel pressure regulator and wiring for visible damage.
- Test the regulator’s performance and verify it maintains proper pressure.
- Check wiring and connectors for visible damage or corrosion.
- Replace the faulty fuel pressure regulator if necessary.
- Inspect the fuel system for low pressure or malfunctioning fuel pumps.
How to Avoid It Before It Happens:
- Regularly inspect the fuel pressure regulator and wiring.
- Perform routine fuel system maintenance.
- Keep connectors clean and corrosion-free.
- Perform diagnostic checks to monitor fuel pressure.
- Clue’s fuel management services track fuel pressure systems to detect issues before they affect engine operation.
