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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1298 (2.4L - DTCS P1456 To P2244) >> DTC Troubleshooting >> P2172-High Airflow/Vacuum Leak Detected (Instantaneous Accumulation) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
VACUUM LEAK
ENGINE OILING SYSTEM ISSUE
RESTRICTION IN THE EXHAUST SYSTEM
INTERNAL ENGINE MECHANICAL COMPONENTS
RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT
RESISTANCE IN THE MAP SIGNAL CIRCUIT
RESISTANCE IN MAP SENSOR GROUND CIRCUIT
MAP SENSOR
THROTTLE BODY - OBSTRUCTION OR FOREIGN OBJECT/MATERIAL
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .