Music has an accelerated sense of frustration.

One of the direct causes of vehicle frustration is poor refueling, and the other is burning problem, which you can only eliminate one by one. Poor refueling may be caused by throttle, nozzle, oil pump and gasoline filter. The possible causes of poor combustion are spark plug high-voltage line, three-way catalytic converter (I call it high-voltage package) and air filter connected with high-voltage line, but generally speaking, the obvious frustration should be the combustion problem, and the most prone to failure are spark plug and cylinder line. Master said that one of the spark plugs was punctured when you changed it? If there is, there is something wrong with the cylinder pipeline. This is not easy to detect. I usually use cylinder wire instead of spark plug. I still suggest you look at the spark plugs and cylinder lines. No problem. Then check the oil pump. I hope my answer can help you.