What is CID 124:
CID 124 refers to an issue with the engine's exhaust system. The ECM detects an abnormality in the exhaust gas recirculation (EGR) valve or its circuit, which can lead to increased emissions, poor fuel economy, and engine performance degradation.
Why This Happens:
- Faulty EGR valve.
- Shorted or damaged wiring in the EGR control circuit.
- Blocked or contaminated exhaust system components.
- Loose or corroded connectors.
- ECM failure to properly interpret the EGR system’s data.
How to Fix It:
- Inspect the EGR valve for damage or carbon buildup.
- Test the EGR valve’s performance to ensure it is functioning correctly.
- Clean or replace the exhaust system components as needed.
- Check the wiring and connectors for visible damage or corrosion.
- Replace the faulty EGR valve or components if necessary.
How to Avoid It Before It Happens:
- Regularly clean or replace the EGR valve to prevent carbon buildup.
- Inspect exhaust components and the EGR system for contamination.
- Keep connectors clean and free from corrosion.
- Perform diagnostic checks to monitor EGR valve performance.
- Clue’s equipment maintenance services track exhaust systems and help prevent issues before they affect engine operation.
