2013 Subaru BRZ Premium, Automatic TransFACTORY OEM SERVICE PROCEDURE

Knock control sensor (FA20): Removal

  1. Disconnection of the battery ground terminal (Refer to WORKING PRECAUTIONS AND NOTES )
  2. Removal of intake manifold (Refer to DISASSEMBLY )
  3. Removal of knock control sensor
    1. Disconnect 2 connectors for knock control sensor.
    2. Remove 2 bolts, and remove the 2 knock control sensors.
      Fig 1: Locating Knock Control Sensor Connector And Bolts
      G08554046Courtesy of SUBARU OF AMERICA, INC.
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When to See a Mechanic

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

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