http://lastgreatroadtrip.com/2008/12/26/how-to-clean-a-mass-air-flow-sensor/ See how to remove and clean a mass air flow (MAF) sensor on an FJ Cruiser. This step by step video will take you through the process of cleaning the sensor to ensure your engine run at peak performance. Airflow is important for your FJ Cruiser. See how to clean your Toyota FJ Cruiser mass air flow sensor ( MAF )