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Home >> Toyota >> 2014 >> Prius Two >> Repair and Diagnosis (Single Page) >> External Pages >> Different variant/trim >> Section 53 (Engine Control System (Diagnostic Code (P0010 - P0300)) - PRIUS (Plug-In)) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem [10/2013 - ] >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

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Both of the following conditions are met -
Average engine load value ratio Less than 0.83, or higher than 1.15 (varies with estimated engine load)
Average air fuel ratio Less than -20%, or higher than 20%