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Home >> Nissan-Datsun >> 2003 >> Frontier Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0101: Mass Airflow Sensor Circuit Range/Performance Problem >> DTC Confirmation Test "A"
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DTC Confirmation Test "A"

NOTE: Perform DTC Confirmation Test "A" first. If 1st trip DTC cannot be confirmed, perform DTC Confirmation Test "B". Always turn ignition off and wait at least 10 seconds before performing next DTC confirmation test.
NOTE: If engine will not start or starts and stalls, go appropriate DIAGNOSTIC PROCEDURE.

Turn ignition on. Select DATA MONITOR mode with scan tool. Start engine and warm to operating temperature. Allow engine to idle for 10 seconds. If DTC is detected, go to DIAGNOSTIC PROCEDURE  . If DTC is not detected, go to appropriate TEST "B".

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