How to match the unstable idle speed of Nissan Junyi throttle cleaning?

Manual matching mode: 1. Turn off the ignition switch and wait at least 10 seconds. 2. Make sure that the accelerator pedal is completely released, turn the ignition switch to the on position and wait for 3 seconds. Repeat the following operations five times in 3.5 seconds. Fully depress the accelerator pedal. Loosen the accelerator pedal completely. 4. Wait for 7 seconds, fully press the accelerator pedal, and keep this state for about 20 seconds until the MIL stops flashing and starts to light up. 5. Fully release the accelerator pedal within 3 seconds after the 5.MIL light is turned on. 6. Start the engine and let it idle for a period of time. 7. Idle for more than 20 seconds; 8. Run the engine at high speed for two or three times, and make sure that the idle speed and ignition timing meet the requirements.