Pickup 2WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1989)
Air Flow Meter/Sensor: Description and Operation
Air Flow Meter
Air Flow Meter Schematic
A Bosch vane type airflow meter is mounted in the air induction system near the air cleaner. The airflow meter measures intake air volume, and
converts these readings into voltage signals by means of a variable resistor (potentiometer). These voltage signals are then sent to the ECU and used to
determine injection duration and proper fuel delivery. When intake air volume is low, the voltage is high; when the intake air volume is high, the voltage
signal is approximately zero.