What should I do if I can't hit the heat car when I start suddenly, and ask for help?

There are two situations: when the engine is turned off, the speed decreases first, and then the refueling speed can't go up, sometimes it will ignite and then turn off. This process lasts for a few seconds, and then once you stop and light the engine, you can basically hit it smoothly, probably because the gasoline filter is blocked. If, no matter what speed or speed, it always turns off suddenly without any warning or process, and then it catches fire, focus on checking the wiring of the circuit, especially the crankshaft position sensor, to see if there is poor contact or the sheath of the wire is broken and short-circuited.