Mass Air Flow (MAF) sensor is used to measure the air volume and temperature of air entering the intake manifold.
MAF sensors can fail for various reasons including
- Dirt contaminating the hot wire.
- Oil from engine air filters that are oiled.
- Interior failure of resistor or hot wire.
Does cleaning the mass air flow sensor help?
Cleaning the MAF sensor is possible but it may or may not work.
If you like to clean your mass air flow sensor always use MAF Sensor Cleaner.