What is the engine fault light caused by the three-way catalyst for bottle washing?

Hanging bottles to clean the three-way catalytic converter led to the engine fault light. Ask god for advice. Three-way catalytic converter is a structural component of catalyst. This is a fault reported by the oxygen sensor. It may be a fault that the oxygen sensor is blocked during cleaning. Remove the oxygen sensor and clean it, or try to replace it! The three-way catalytic converter, that is, the catalyst, will not break easily. You can refer to the washed three-way catalytic converter hanging on it, and then the engine fault light is on, indicating whether the fault of the three-way catalytic converter is broken by cleaning. If it is on, it may increase fuel consumption. You are cleaning the economizer valve, right? Is it washed or sprayed directly without disassembly? If it is disassembled, first disconnect the negative wire of the car and unplug the throttle! If there is a fault code, the computer will clear it again after arriving at the store. If there is a fault code, you can check both oxygen sensors or replace them. Generally, the former oxygen controls the air-fuel ratio and the latter oxygen controls the three-way catalysis. I hope it will be helpful for you to measure the three-way catalytic failure with computer. I have cleared the fault code several times, and it's no problem to come out again this time. This won't clean the three-way catalyst, will it? Can you, uh, clear the fault code and check the stage to see if it will appear again? If it will appear again, it may be that oxygen sensors or carbon deposits have affected the car @20 19.