Will the cold weather affect the ignition of the car?

This is no problem, but make sure the coolant of the car doesn't freeze. It's too cold, the cylinder is too cold and the spark plug is too cold to explode, so it won't catch fire.

A simple way is to take a piece of cloth, dip it in gasoline, light it in front of the air intake, and then start the car. At this time, the engine will suck the hot air in front of the air intake into the cylinder.

The reason why the car won't catch fire:

The exhaust pipe is frozen or the valve has too much carbon deposit. The freezing of the exhaust pipe is mainly due to the low frequency of car use. Water vapor after engine combustion freezes in some parts of the exhaust pipe. If you don't drive often, you can't let the ice melt, and in the long run, more ice will form. Over time, it will have an important impact on the start and exhaust of the car.