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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1313 (6.7L Diesel - DTCS P0340 To P063D - 2500 Hd & 3500 Hd) >> DTC Troubleshooting >> P0402-EGR Flow Excessive Detected >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
EXHAUST GAS PRESSURE SENSOR
EGR AIRFLOW THROTTLE CONTROL VALVE
EXHAUST SYSTEM LEAK
INTAKE SYSTEM LEAK
EGR VALVE
INTAKE MANIFOLD TEMPERATURE SENSOR
MASS AIR FLOW SENSOR

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE - 6.7L  .