Possible causes

– Faulty Exhaust Gas Recirculation (EGR) valve
– Faulty Exhaust Gas Recirculation (EGR) valve solenoid
– Exhaust Gas Recirculation (EGR) valve carbon blockage

When is the code detected?

The Engine Control Module (ECM) is detecting Exhaust Gas Recirculation (EGR) flow or movement when it is not expected

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)