July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Engine Coolant Temperature Sensor (ECTS) #2

Turn ignition switch OFF and disconnect the negative (-) battery cable.
Remove the intake manifold.
(Refer to Engine Mechanical System - "INTAKE MANIFOLD ")
Disconnect the engine coolant temperature sensor connector (A).
Remove the engine coolant temperature sensor after loosening mounting bolt (B).

Courtesy of HYUNDAI MOTOR AMERICA
NOTE:
- Note that engine coolant may flow out when removing the sensor.