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Home >> Toyota >> 2007 >> Prius Base >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0101 Mass Air Flow Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

Case1: Mass airflow meter rationality (High voltage) 

TYPICAL MALFUNCTION THRESHOLDS (CASE1) - MASS AIRFLOW METER RATIONALITY (HIGH VOLTAGE)

Mass air flow meter voltage More than 2.2 V (varies with throttle position)

Case2: Mass air flow meter rationality (Low voltage) 

TYPICAL MALFUNCTION THRESHOLDS (CASE2) - MASS AIRFLOW METER RATIONALITY (LOW VOLTAGE)

Mass air flow meter voltage Less than 0.7 V (varies with throttle position)
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