Possible Causes
WARNING: This page is about a different variant/trim than selected.
| Possible Causes |
|---|
| LP EGR DIFFERENTIAL PRESSURE SENSOR FAULT |
| CLOGGED LP EGR COOLER |
| LEAKS OR RESTRICTIONS BETWEEN THE DPF OUTLET AND THE TURBOCHARGER INLET |
| MASS AIR FLOW (MAF) SENSOR FAULT |
| LP EGR VALVE ACTUATOR (-) CIRCUIT OPEN/LOW RESISTANCE |
| LP EGR VALVE ACTUATOR (+) CIRCUIT SHORTED TO GROUND |
| LP EGR VALVE ACTUATOR (-) CIRCUIT SHORTED TO VOLTAGE |
| LP EGR VALVE POSITION SIGNAL CIRCUIT OPEN/LOW RESISTANCE |
| LP EGR VALVE POSITION SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| LP EGR VALVE POSITION SIGNAL CIRCUIT SHORTED TO GROUND |
| LOW PRESSURE (LP) EXHAUST GAS RECIRCULATION (EGR) VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .