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Home >> Lexus >> 2025 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Engine Control System - Diagnostic Codes (P0069-P0110)) >> SFI System >> DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [11/2021 - 03/2022] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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Both of the following conditions are met -
Average engine load value ratio Less than 0.85, or higher than 1.2 (varies with estimated engine load)
Average air fuel ratio Less than -5%, or higher than 20%