12 sylphy, what if the throttle is cleaned and the idle speed is high?

Hello, the idle speed is high after the throttle is cleaned, so you need to match the throttle. An easier way is to go to a 4S shop. The DIY method is as follows: 1. Preheat the engine to normal operating temperature. 2. Turn the ignition switch (key) to the off position, turn off the fire and wait at least 10 second. 3. Turn the ignition switch to the on position when the accelerator is not depressed. Wait for 3 seconds. 4. Quickly repeat the following 5 and 6 operations for 5 times within 5 seconds (actually, fully press and release the accelerator pedal for 5 times within 5 seconds). 5. Fully depress the accelerator pedal. 6. Loosen the accelerator pedal completely. 7. Wait for 7 seconds and keep this state for about 20 seconds until the MIL stops flashing, and then stay on for a long time. 8. After the 8.MIL lights up, completely release the accelerator pedal for 3 seconds. 9. Start the engine. Thank you~