What is the measurement method of throttle opening?

The measurement method of throttle opening is: 1, and find the fault diagnosis socket under the dashboard on the driver's side, in the engine compartment or in the co-pilot position; 2. Turn off the ignition switch, connect the scan tool and turn on the ignition switch, but don't start the engine; 3. Call the read data stream function on the scan tool, and select the data stream of the throttle position sensor to read the throttle opening value. The function of the throttle valve is to control the air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, thus the combustion is successful. The effects of throttle blockage are: 1, vehicle idling jitter, and it is difficult to strike a fire when the vehicle is cold; 2. It is easy to turn off the fire after quick oil collection; 3, resulting in increased fuel consumption and engine jitter.