What is CID 163:
CID 163 refers to a problem with the vehicle’s exhaust system, particularly the exhaust gas recirculation (EGR) valve. The ECM detects a malfunction in the EGR valve, leading to increased emissions, poor fuel economy, and engine performance degradation.
Why This Happens:
- Faulty or malfunctioning EGR valve.
- Carbon buildup or contamination in the EGR valve.
- Shorted or damaged wiring in the EGR control circuit.
- Blockages in the exhaust system.
- ECM failure to properly process the EGR system’s data.
How to Fix It:
- Inspect the EGR valve for carbon buildup or malfunction.
- Test the EGR valve for proper operation.
- Clean or replace exhaust components as needed.
- Check wiring and connectors for 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.
