What does primary ignition mean in a car?

First, primary ignition is needed, and then instantaneous ignition is needed, resulting in high-voltage sparks in the secondary coil.

Of course, you have to get the security signal from GFI. If the safety signal is not fed back within 5 times, the spark plug of the cylinder will be automatically cut off and will not be re-ignited.

The primary ignition coil has fewer turns, which only plays the role of current passing and can extinguish the fire instantly, while the secondary ignition coil has more turns, which plays the role of generating high voltage.