Why does the engine feel out of cylinder after cleaning the throttle and nozzle?

Under normal circumstances, the car does not need to be cleaned, it is a sophisticated thing, and improper operation will cause damage. And as long as the air intake is not serious, there is no need to clean it. It only needs cleaning at most. Just like the original car, there is a certain amount at a certain time and it needs to be cleaned, otherwise it will be unstable or wobbly. I suggest you go to an experienced computer to check the car fault code and see if there is a fault code in the fuel injection circuit.