Possible Causes
WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| MASS AIR FLOW (MAF) SENSOR VALUE NOT LEARNED |
| THERMOSTAT OUTLET RESTRICTED |
| EGR CROSSOVER TUBE RESTRICTION |
| EGR VALVE STICKING OR RESTRICTED |
| FAULTY EGR COOLER BYPASS CONTROL VALVE |
| FAULTY EGR AIR FLOW CONTROL VALVE |
| FOULED EGR COOLER |
| IMPROPER FUELING |
| LEAKING OR DAMAGED NOX ABSORBER CATALYST |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L .