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Home >> Lexus >> 2025 >> NX 350 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Service Information >> Ignition Coil And Spark Plug >> Installation [11/2021 - 03/2023] >> Procedure
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Installation [11/2021 - 03/2023]: Procedure

  1. INSTALL SPARK PLUG 
    Refer to PROCEDURE - Step 1
  2. INSTALL IGNITION COIL ASSEMBLY 
    1. GTY1077089Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, install the 4 ignition coil assemblies to the cylinder head cover sub-assembly with the 4 bolts.

        Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

        NOTE:

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

  3. CONNECT ENGINE WIRE 
  4. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 54
  5. PERFORM INITIALIZATION 
    1. Perform "Inspection After Repair" after replacing an ignition coil assembly or spark plug.

      Refer to INITIALIZATION [11/2021 - ]