How do you replace 2003 Santa Fe Mass Air Sensor?

To replace the mass air flow (MAF) sensor on a 2003 Hyundai Santa Fe, first ensure the vehicle is off and the key is removed. Locate the MAF sensor, which is typically found between the air filter and the throttle body. Disconnect the electrical connector and unscrew the sensor from the air intake duct. Replace it with the new sensor, reattach the connector, and ensure all connections are secure before starting the engine.