P00BC - Mass Or Volume Air Flow A Circuit Range/Performance - Air Flow Too Low

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DTC DESCRIPTION P00BC - MASS OR VOLUME AIR FLOW A CIRCUIT RANGE/PERFORMANCE (AIR FLOW TOO LOW)

Description: This DTC sets when the measured airflow is 26 percent less than the calculated airflow for a calibrated period of time.
Possible Causes: Exhaust gas recirculation (EGR) system leak Damaged EGR valve Intake air system leak between the air filter and the turbocharger Intake air system restriction between the air filter and the turbocharger Crankcase ventilation system leak Biased mass airflow/intake air temperature (MAF/IAT) sensor Damaged MAF/IAT sensor
Diagnostic Aids: The test for this DTC will only run once per drive cycle while the vehicle is at idle. The DTC P2073 may set with this DTC. Diagnose DTC P2073 before diagnosing DTC P00BC.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST J .