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Home >> Mazda >> 2009 >> 3 Mazdaspeed, 2.3 M >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System (L3 With TC) >> Spark Plug Inspection [L3 With TC] >> Visual Inspection

Visual Inspection

  1. Inspect the following items:
    • If any of the following malfunctions are indicated, replace the spark plug.
      • Insulator breakage
      • Worn electrode
      • Damaged gasket
      • Badly burned insulator (sparking side)
        Fig 1: Identifying Spark Plug Inspection Points
        G04859746Courtesy of MAZDA MOTORS CORP.
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