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Repair Procedures: Removal

Turn the ignition switch OFF and disconnect the battery negative (-) cable.
Remove the intake manifold (Refer to INTAKE AND EXHAUST SYSTEM ).
Disconnect the injector connector (A).
Remove the installation bolt (B), and then remove the sensor from the cylinder block.

Fig 1: Identifying Injector Connector And Installation Bolt
Courtesy of HYUNDAI MOTOR AMERICA