1. The ignition coil burst position is generally at the epoxy surface, mainly due to excessive temperature.

2. When the replacement is connected to the wrong line, or the leakage of the additional resistor causes the primary winding current to be too large, and the excessive heat generation causes the low-pressure skeleton to melt.

3. The current ignition controller current limit function is damaged, the current is unstable, and the temperature is too high and the temperature is too high.

4, the hot and cold temperature changes too much, resulting in cracking of the outer casing and epoxy surface.

5, rain or car leakage, causing short circuit, burned ignition coil.  

Therefore, we need to pay attention to the temperature problem during the driving process, because there are many faults and damages, the temperature is developed step by step as a cause, and there is also a problem that we need to pay attention to the wiring during the replacement process. Avoid connecting the wrong line.