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Removal & Installation

  1. Ensure exhaust system is cool before removing O2 sensor or thread damage may occur. Disconnect negative battery cable and oxygen sensor connector. See Fig 1 . Remove oxygen sensor.
  2. To install, reverse removal procedure. Apply anti-seize compound to oxygen sensor threads. Tighten to specification. See TORQUE SPECIFICATIONS at end of article.
Fig 1: Locating Oxygen Sensor (Sonata 2.4L, Excel is Similar)
G122032Courtesy of HYUNDAI MOTOR CO.