How does Wuling Hong Guang improve idle speed?

You have to prepare professional tools. (solution knife, wrench)

Find the throttle, find an adjusting bolt on the throttle, which is a bit long and has a bannut on it, which is fixed tightly.

Loosen it, and then use a screwdriver to adjust the tightness of the bolt.

Remember that the car is tuned when it is on fire, and you will obviously feel the change of idle speed.

Or see if your idle motor is working properly, because the average car idle speed is adjusted to the best. If it is not normal, there may be something wrong with the idle motor.