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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Ignition System (STI)) >> Spark Plug >> Removal >> LH Side
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LH Side

WARNING: This page is about a different variant/trim than selected.
  1. Remove the Battery. Ref. to STARTING/CHARGING SYSTEMS(STI)>Battery>REMOVAL .
  2. Remove the secondary air pump. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>Secondary Air Pump>REMOVAL .
  3. Remove the bolts that secure the air duct to the rocker cover LH, and lift the air duct.
    G06333842
  4. Disconnect the connector from ignition coil.
    CAUTION: Be careful not to damage the claw (a) of the connector.
    G11574057
  5. Remove the ignition coil.
    NOTE: Turn #4 ignition coil by 180° to remove it.
    G08539623
  6. Remove the spark plug with a spark plug socket.
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