[Knock Sensor #2 (Bank 2)]

Turn the ignition switch OFF and disconnect the battery negative (-) cable.
Disconnect the knock sensor connector (A).

Fig 1: Identifying Knock Sensor Connector
Courtesy of HYUNDAI MOTOR AMERICA
Drain the engine coolant (Refer to "COOLING SYSTEM " in EM group).
Remove the radiator upper hose (Refer to "COOLING SYSTEM " in EM group).
Remove the coolant pipe [Bank 2] (Refer to "COOLING SYSTEM " in EM group).
Remove the oil level gauge (Refer to "COOLING SYSTEM " in EM group).
Remove the installation bolt (A), and then remove the sensor from the cylinder block.

Fig 2: Identifying Knock Sensor Mounting Bolt
Courtesy of HYUNDAI MOTOR AMERICA