Airflow Sensor

On all models except Supra Turbo, the airflow sensor in the airflow meter measures airflow volume. Airflow meter converts intake air readings into a voltage signal by means of a variable resistor (potentiometer). Signal is sent to ECU for controlling fuel injection duration and spark advance system. On Supra Turbo, the airflow volume is measured by a Karman-Vortex airflow meter. This input signal is sent to the ECU.