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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (2.0L) >> Knock Sensor >> Removal >> LH Side
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LH Side

  1. Remove the collector cover. Refer to INTAKE (INDUCTION) (W/O STI)>COLLECTOR COVER>REMOVAL .
  2. Disconnect the ground terminal from battery sensor. Refer to NOTE>NOTE>BATTERY .
  3. Remove the intercooler. Refer to INTAKE (INDUCTION) (W/O STI)>INTERCOOLER>REMOVAL .
  4. Remove the throttle body. Refer to FUEL INJECTION (FUEL SYSTEMS) (W/O STI)>THROTTLE BODY>REMOVAL .
  5. Remove the bolts securing the engine wiring harness.
    G10266205Courtesy of SUBARU OF AMERICA, INC.
  6. Disconnect the connector (A) from the knock sensor, and remove the knock sensor from the cylinder block.
    G09479753Courtesy of SUBARU OF AMERICA, INC.