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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 731 (6.4L - DTCS P1607 To P2317 - 2500 Hd, 3500 Hd) >> Diagnosis And Testing >> P2174-Low Airflow/Restriction Detected (Instantaneous Accumulation) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
RESTRICTED AIR INLET SYSTEM
RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT
RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT
RESISTANCE IN THE MAP SENSOR SIGNAL CIRCUIT
RESISTANCE IN SENSOR GROUND CIRCUIT
RESISTANCE IN THE THROTTLE POSITION SENSOR SIGNAL CIRCUITS
RESISTANCE IN THE THROTTLE POSITION SENSOR RETURN CIRCUIT
MAP SENSOR
THROTTLE POSITION SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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