Nissan Yida's idle speed is unstable after cleaning the throttle.

Manual matching is required. The simple operation is as follows: first disconnect the negative electrode of the battery, wait for 30 seconds, connect the negative electrode, pedal the accelerator to the bottom, then unscrew the key until the instrument light is all on (don't start the engine), then release the accelerator, pedal the accelerator to the bottom again, and repeat several times. If the above operation fails, use the computer to enter the engine system, release the fuel pressure, and then adjust the engine speed (it can be operated on the computer).