Exhaust Gas Recirculation Flow Excessive Detected
EGR flow is higher than expected when the valve should be closed, or higher than commanded when partially open. Typically a valve that has stuck open due to carbon, causing rough idle and stalling.
Affected components
- Egr valve
Common causes
- High likelihood: EGR valve stuck open
- Medium likelihood: Valve seat eroded — does not seal
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.