Should spark plugs be replaced and how should they be judged?
Spark plug is an important component of the car ignition system. Its function is to discharge the pulse high-voltage electricity sent by the high-voltage wire (nozzle wire), penetrate the air between the two electrodes of the spark plug, generate electric sparks, and ignite the mixed gas in the cylinder. Due to working in a high-temperature and high-pressure environment for a long time, spark plugs are also one of the vulnerable parts of the engine. Once there is a problem with the spark plug, the overall performance of the vehicle will be seriously affected, and the owner needs to follow…