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Home >> Toyota >> 2021 >> Sequoia TRD Pro >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (3UR-FE) - Diagnostic Codes (1 Of 9) >> SFI System >> DTC P0101: Mass Air Flow Circuit Range / Performance Problem [08/2015 - 08/2017] >> Description
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DTC P0101: Mass Air Flow Circuit Range / Performance Problem [08/2015 - 08/2017]: Description

Refer to DTC P0102 (Refer to DESCRIPTION ).

DTC Code DTC Detection Condition Trouble Area
P0101 Conditions (a), (b), (c), (d) and (e) continue for more than 10 seconds (2 trip detection logic):
(a) Engine running
(b) Engine coolant temperature 70°C (158°F) or higher
(c) Throttle Position (TP) sensor voltage 0.2 V or more and less than 3.6 V
(d) Average engine load value ratio less than 0.85, or more than 1.47 (varies with estimated engine load)
Average engine load value ratio = Average engine load based on MAF meter output / Average engine load estimated from driving conditions
(e) Average air-fuel ratio less than -15%, or more than 15%
  • Mass Air Flow (MAF) meter
  • Air induction system
  • PCV hose connections