The ignition coil and spark plug are not one part at all. The ignition coil can convert 12v into tens of thousands of volts. Only in this way, the spark plug has enough ignition energy. The ignition coil is connected to the spark plug.
Spark plugs are wearing parts and need to be replaced regularly.
At the end of the engine's compression stroke, the spark plug will ignite the combustible mixture so that it can burn and push the piston down.
When the spark plug is used for a long time, the electrode gap will become larger, which will affect the normal ignition of the spark plug.
The electrode of the spark plug will also have carbon deposits after long-term use, which will also affect the ignition of the spark plug.
If the spark plug is not properly ignited, it will lead to insufficient combustion of the engine, resulting in increased fuel consumption and reduced engine power.
The ignition coil is not a worn part, but this part will be damaged if it works in a high-temperature environment for a long time.
If the ignition coil is broken, it also needs to be replaced immediately, otherwise, it will affect the normal operation of the engine.
In the daily use of the car, the wearing parts must be replaced regularly and maintained on time.
When replacing wearing parts, be sure to use genuine parts, otherwise, it will affect the normal operation of the car.
When installing spark plugs, be sure to tighten them to the specified torque.