P2385
EGR Sensor E Circuit
A circuit fault is detected on the fifth exhaust-gas recirculation sensor (E). The ECU loses this EGR feedback channel and falls back to a substitute value; emissions and EGR rate accuracy on this stage are reduced until repair.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Common causes
Ordered by how often each turns out to be the cause.
- Open in sensor signal, supply or groundCommon
- Connector corroded or contaminatedPossible
Parts involved
- EGR Sensor E
- EGR Sensor Wiring E
P2385 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.