Severity: Fix within days. Drive with caution and watch for new symptoms.
The computer found a fault in the circuit that controls the EGR valve, so it cannot open or close the valve reliably.
Check the fuse and wiring, then test and replace the EGR valve or solenoid.
Drivable with care. You may notice rough idle or knocking under load.
You can drive short distances carefully; watch for worsening symptoms. Drivable with care. You may notice rough idle or knocking under load.
The most common causes are: Failed EGR valve or solenoid; Damaged wiring or connector; Blown fuse; Failing engine computer driver. A scan tool and a visual check of the parts above is where a technician starts.
Check the fuse and wiring, then test and replace the EGR valve or solenoid.
