ECT sensor is to be fitted on a water outlet which is present where the upper side of the radiator hose is attached to the engine and the position of the sensor on the engine is left side. Firstly, it is recommended to have the engine cover and the air intake duct removed. Due to the high rate possibility of the splashing of the engine coolant, then drain some of the engine coolant. Then, release the connector from the ECT sensor harness and unthread the sensor from the engine; throw away the sealing washer since it needs to be replaced after that. Last of all, installation is done in opposite with the removal directions and probably the cooling system of the computer needs to be refilled.