Examination
Remove the sensor (without unplugging).
Blow air from the air cleaner side (ignition key in the ON position) and check the change in output voltage between pin 1 and «weight».
- Air not supplied: 1V
- When blowing air: 1.3V (the stronger the jet, the greater the voltage)
When air is supplied from the duct side, the voltage decreases.
Removing
1. Disconnect the wiring connector.
2. Remove the upper air cleaner housing along with the mass air flow sensor assembly.
3. Remove the sensor from the upper air cleaner housing.