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Home >> Lexus >> 2014 >> IS 250 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - Service Information >> Ignition Coil And Spark Plug >> Installation [04/2013 - 08/2015] >> Procedure
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Installation [04/2013 - 08/2015]: Procedure

  1. INSTALL SPARK PLUG 

    HINT: 

    Perform "Inspection After Repair" after replacing a spark plug.

    Refer to INITIALIZATION [04/2013 - 08/2015]

    1. Install the 6 spark plugs to the cylinder head sub-assembly.

      Torque: 18 N.m (184 kgf/cm, 13 ft.lbf) 

      NOTE:

      If a spark plug has been struck or dropped, replace it.

      HINT: 

      Install the same parts to their original positions.

  2. INSTALL IGNITION COIL ASSEMBLY 

    HINT: 

    Perform "Inspection After Repair" after replacing an ignition coil assembly.

    Refer to INITIALIZATION [04/2013 - 08/2015]

    1. Install the 6 ignition coil assemblies to the cylinder head cover sub-assembly with the 6 bolts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

      NOTE:

      If an ignition coil assembly has been struck or dropped, replace it.

      HINT: 

      Install the same parts to their original positions.

    2. Connect the 6 ignition coil assembly connectors.
    3. Connect the ignition coil cover bracket to the cylinder head cover sub-assembly LH with the 2 bolts.
      GTY462057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Bolt A 

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

      Bolt B 

      Torque: 21 N.m (214 kgf/cm, 15 ft.lbf) 

    4. Connect the wire harness to the cylinder head cover sub-assembly with the 2 nuts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

  3. INSTALL INTAKE AIR SURGE TANK ASSEMBLY 

    Refer to INSTALLATION [04/2013 - 08/2015]

  4. PERFORM INITIALIZATION 
    1. Perform "Inspection After Repair" after replacing an ignition coil assembly and spark plug.

      Refer to INITIALIZATION [04/2013 - 08/2015]