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Avalon Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Control System (Diagnostic Codes (P0010-P0346))
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SFI System
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DTC P0101: Mass Air Flow Circuit Range / Performance Problem
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
Both of following conditions are met:
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Average engine load value ratio
Less than 0.85 or more than 1.26 (varies with estimated engine load)
Average air fuel ratio
Less than -20% or more than 20%