Possible Causes
| Possible Causes |
|---|
| CARBON DEPOSITS IN EGR VALVE |
| EGR VALVE ASSEMBLY STICKING/DRAGGING |
| HIGH RESISTANCE IN THE EGR VALVE POSITION SIGNAL CIRCUIT |
| HIGH RESISTANCE IN THE SENSOR GROUND CIRCUIT |
| EGR VALVE ASSEMBLY |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to: PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .