Help, free light shakes when idling.

Hello, the engine jitter may be caused by carbon deposition on the throttle or the gasoline filter element has not been replaced for a long time (it is recommended to replace it once every 30,000 kilometers), resulting in the mixture being too lean. It is suggested that the engine system fault code should be checked by computer first, the three-way catalyst of the throttle intake injector should be cleaned, and the gasoline filter element should be replaced if necessary.