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Home >> Lexus >> 2014 >> IS 250 Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (4GR-FSE) - Diagnostic Codes (1 Of 5) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem [04/2013 - 08/2015] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

Both of the following conditions are met -
Average engine load value ratio Less than 0.85, or higher than 1.15 (varies with estimated engine load)
Average air fuel ratio Less than -20%, or higher than 20%
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