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Home >> Subaru >> 2008 >> Impreza WRX STi >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H4DOTC) >> Knock Sensor >> Removal
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Knock Sensor: Removal

  1. Disconnect the ground cable from the battery.
    Fig 1: Identifying Battery Ground Cable
    G05019586Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the intercooler. <Ref. to REMOVAL , Intercooler.>
  3. Disconnect the knock sensor connector.
    Fig 2: Identifying Knock Sensor Connector
    G05660397Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the knock sensor from the cylinder block.
Fig 3: Identifying Knock Sensor And Cylinder Block
G04999385Courtesy of SUBARU OF AMERICA, INC.