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Home >> Subaru >> 2019 >> BRZ Series.Gray >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 3) >> EFI System (FA20) >> DTC P0101: Air Flow Sensor Characteristic >> Circuit description >> Notes
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Circuit description: Notes

For a circuit description, refer to DTC P0102 MASS AIR FLOW CIRCUIT LOW; DTC P0103 MASS AIR FLOW CIRCUIT HIGH .

DTC No. DTC detection condition Suspected parts
P0101 When any of the following conditions is met (2 trip detection logic):
  • When the throttle position is at 10° or more, intake air flow meter SUB-ASSY voltage is less than 1.13 V for 5 seconds or longer.
  • When the throttle position is less than 3.8°, intake air flow meter SUB-ASSY voltage is 1.88 V or more for 10 seconds or longer.
  • Intake air flow meter SUB-ASSY
  • Intake system
  • PCV hose connection