采用电控燃油喷射与三元净化器相配合是目前解决以汽油机为动力汽车尾气污染的最有效途径，已成为现代汽车的标准配置，但当这一系统出现故障或不正常运行时，可能会重新对大气造成污染，本文通过试验研究证实这种运行不良引起的污染须引起足够的重视并应采取相应的对策。 The use of electronically controlled fuel injection combined with a three-way purifier is the most effective way to solve the problem of gasoline engine-powered exhaust pollution and has become the standard configuration of Hyundai Motor. However, when this system fails or is not operating properly, Re-polluting the atmosphere, this paper confirmed by experimental studies that pollution caused by poor operation should be given sufficient attention and should take appropriate measures.