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Home >> Toyota >> 2009 >> Prius Touring >> Repair and Diagnosis (Single Page) >> 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

Case 1: Mass air flow meter rationality (High voltage) 

TYPICAL MALFUNCTION THRESHOLDS

Mass air flow meter voltage More than 1.34 V (varies with throttle position)

Case 2: Mass air flow meter rationality (Low voltage) 

TYPICAL MALFUNCTION THRESHOLDS

Mass air flow meter voltage Less than 0.85 V (varies with throttle position)