What causes the engine to shake after washing the throttle?

What causes the engine to shake after washing the throttle? What causes the engine to shake after washing the throttle? The reason of engine jitter after washing the throttle valve is that there is no data matching. The following are the specific reasons and treatment methods of automobile engine jitter: 1, automobile carbon deposition leads to ignition difficulty. When idling, it is accompanied by slight jitter. Just clean the throttle and fuel injectors. 2. The ignition energy of the spark plug is very weak. If the spark plug is not replaced after the maintenance period, the ignition energy of the spark plug will drop seriously, resulting in a fire. 3. Insufficient low pressure in the fuel circuit. Insufficient oil pressure in low-pressure oil circuit directly leads to secondary ignition of engine. Check the fuel pressure regulator, gasoline pump, gasoline filter and internal pipeline. 4. The battery is dead. You need to find a car or other battery to charge. 5. Engine timing is wrong. The engine timing does not match the engine, and some models of engines may cause tooth jumping when replacing the generator belt, which may lead to difficulty in striking the fire. Engine jitter is related to many reasons, such as excessive carbon deposition in intake system such as throttle valve and idle valve, poor atomization of nozzle and poor working performance of ignition system, which is directly related to the working performance of spark plug, high-voltage line and ignition coil. @20 19