P2413
Exhaust Gas Recirculation System Performance
The ECU monitors EGR flow indirectly through MAF, MAP or differential-pressure feedback and finds that actual EGR flow does not match the commanded value over a sustained period.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Carbon buildup in EGR passagesCommon
- Sticking EGR valveCommon
- EGR differential pressure sensor faultPossible
Parts involved
- EGR Valve
- EGR Cooler
- EGR Diff Pressure Sensor
P2413 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.