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Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> Engine Ignition System (2.5L) >> Spark Plug >> Removal >> RH Side
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RH Side

  1. Disconnect the ground cable from battery.
  2. Remove the air cleaner case. <Ref. to REMOVAL , Air Cleaner Case.>
  3. Disconnect the connector from ignition coil.
    CAUTION: Be careful not to damage the claw (a) of the connector.
    Fig 1: Locating Ignition Coil Connector - RH Side
    G11574057Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the ignition coil.
    NOTE:
    • When removing the ignition coil #3, remove the clip (A) from the engine harness stay.
    • Turn the ignition coil by 180° to remove it.
    Fig 2: Locating Clip Of Engine Harness Stay
    G11574058Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the spark plug with a spark plug socket.
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