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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (6.7L - DTCS P0420 To P1191 - 3500 Cab & Chassis) >> Diagnosis And Testing >> P0471-Exhaust Pressure Sensor 1 Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
DEBRIS PLUGGING THE PRESSURE TUBE
DEBRIS PLUGGING THE PRESSURE SENSOR PORTS ON THE WATER OUTLET CONNECTION
EXHAUST GAS PRESSURE SENSOR

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

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