2015 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. Function inspection of intake air flow meter sub-assembly
    1. Inspection of intake air amount
      CAUTION:
      • Perform inspection with the vehicle on a level surface and engine stopped.
      • Perform the inspection with the air cleaner assembly installed.
      • Do not suction the exhaust emission from the exhaust tail pipe with the exhaust duct.
      1. Connect the SSM3 to the DLC.
      2. Turn the ignition switch to ON, and then wait for 30 seconds.
      3. According to the display on the SSM3, select [Data monitor] →[Mass Air Flow], and read the intake air amount.

      Standard value

      MASS AIR FLOW STANDARD VALUE SPECIFICATION

      Item name Inspection conditions Standard value
      Mass air flow Engine stops 30 seconds after IG ON Less than 0.85 g/s
      CAUTION:
      • If it is out of standard value, replace the intake air flow meter sub-assembly.
      • If it is within standard value, check the intake air flow meter sub-assembly. (Refer to ON-VEHICLE INSPECTION  )
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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