Air Flow Meter/Sensor: Testing and Inspection

COMPONENT INSPECTION
Mass air flow sensor
1. Turn ignition switch "ON".
2. Start engine and warm it up sufficiently.




3. Check voltage between terminal (5) and ground.




*: Check for linear voltage rise in response to increase to about 4,000 rpm in engine speed.




4. If NG, remove mass air flow sensor from air duct. Check hot film for damage or dust.