What is the reason for the jitter after washing the throttle?

The causes of engine jitter after throttle cleaning include serious carbon deposition, ignition system problems, unstable oil pressure, aging engine components and so on. If idling, the owner can clean the engine, replace the spark plug and check the fuel supply pressure. Cleaning the throttle valve is one of the routine maintenance items of the engine. For direct injection engines, clean the throttle every 20,000 kilometers, and for engines with air pipe injection, clean the throttle every 40,000 kilometers. If the carbon deposition on the throttle is serious, it will affect the idle speed, fuel consumption, power and air conditioning function of the vehicle.