Excuse me, does anyone know what sensor is next to the accelerator position sensor on the accelerator of Fukang car, and what is its function?

If you mean the one on the air cleaner on the right side of the throttle? This is the intake air temperature measured by the air temperature sensor. If you're talking about the one under the throttle and with the throttle body, that's the throttle heating resistance wire plug, which is used to heat the throttle body and raise the temperature for cold start. These are the only two sensors near the throttle.