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Home >> Lexus >> 2009 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS P0010 - P0368) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

Both of following conditions 1 and 2 met -
1. Averaged engine load value ratio Less than 0.85%, or more than 1.3% (varies with estimated engine load)
2. Averaged air fuel ratio Less than -20%, or more than 20%
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