What is the reason why the car is boring after cleaning the throttle?

Generally, there are the following reasons for the car's weakness after cleaning: 1. Reason one: too much cleaning agent is sprayed during cleaning, which leads to too thick mixed gas and insufficient combustion. This problem will solve itself in a short driving time. 2. Reason 2: The cleaning agent used is of poor quality or improper cleaning method. Sometimes when cleaning the throttle, it will be accompanied by cleaning the air inlet, oil circuit, three-way catalyst and so on. It is very easy to cause abnormal damage to the engine and damage or blockage of the three-way catalyst. 3. Reason 3: Check the ignition system. Sometimes, when the spark plug is about to be replaced, a cleaning agent with improper cleaning or poor quality will be added. When it is not properly cleaned, the engine is prone to deflagration, which will damage the ignition system to a certain extent and sometimes even damage the mechanical parts of the engine.