How to solve the Non-Working MLX90614 connection with Arduino

pinMode(8, OUTPUT);

digitalWrite(8, LOW);

mlx.begin();  //you start the serial connection with the senor

delay(500); //wait for 0.5 second

digitalWrite(8, HIGH); //When 8 is high it will connect the sensor to the Arduino SCL pin 

delay (500); //wait for another 0.5 second