Ignition coils were essential to gasoline engines, even before they were used to power horseless carriages, and are still essential today. Their role is to provide high-pressure sparks, used to jump over the gap on the spark plug, and ignite the gasoline and air mixture. Without a suitable ignition coil, a spark-ignition engine would not be possible. They also work very hard-a a typical spark plug fires eight times per second.
Although older vehicles often have one coil to power all spark plugs, recent cars have multiple coils, and most designs today are equipped with a dedicated coil for each spark plug. Over time, the coil will degrade and fail, causing a misfire and subsequent engine management lights to light up. It is not a wise idea to continue driving the car because a misfire can cause gasoline to enter the catalytic converter, causing expensive components to overheat and melt inside.
Longer coil life
High resistance is the enemy of ignition coils. Ignoring routine maintenance and failing to replace spark plugs on time, not paying attention to the contamination of oil/water around the ignition system components, and not replacing other worn ignition system components (such as high-voltage cables and distributor covers/rotor arms on old cars) will increase the amount of damage on the coil. Voltage requirements. In the event of a fire, the suppressed energy in the coil will be released in the form of heat, thereby reducing its life expectancy.
Prioritize quality over cost
We encountered low-quality alternative coils entering the market, especially in the online market. Although low-end coils can cause misfire and difficulty in starting, using them can have more serious consequences. Since the coils are controlled by the engine management computer (ECU), they rely on the flyback voltage fed back after the spark plug "ignites". Unfortunately, these voltages may be too high and damage the ignition driver of the ECU, so the ECU will be damaged or destroyed in the process. Therefore, please look for brands that directly supply the car manufacturer, or buy from a reliable parts supplier that provides OEM quality parts, that is, parts that meet the same specifications specified by the car manufacturer.