How to detect the quality of electronic throttle?

Now I'm going to give you "How to detect the electronic throttle?" For the related contents of, please refer to the following related contents:

Quality inspection method of electronic throttle;

1, first of all, whether it is stable from the idle speed;

2, then, neutral boom accelerator boom to 4000 rpm, loosen the accelerator pedal, see if the accelerator is stable return;

3. Finally, check whether there is any fault code, and clean the lower throttle valve, fuel injector and intake branch pipe when driving normally for 4wkm.