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Home >> Lexus >> 2015 >> GS 350 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (1 Of 4) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem [09/2014 - 10/2015] >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

Both of the following conditions 1 and 2 are met -
1. Averaged engine load value ratio Less than 0.85, or more than 1.19 (for 2WD models) (ratio varies with estimated engine load)
Less than 0.85, or more than 1.15 (for AWD models) (ratio varies with estimated engine load)
2. Averaged air fuel ratio correction value Less than -20%, or more than 20%