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Prius Plug-in
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System (Diagnostic Code (P0010 - P0300)) - PRIUS (Plug-In)
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SFI System
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DTC P0101: Mass Air Flow Circuit Range / Performance Problem [10/2013 - ]
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
Both of the following conditions are met
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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%