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汽车尾气的成分往往与发动机的状况有着紧密的联系。以基于尾气分析的发动机故障诊断研究为中心话题,主要探讨分析了发动机尾气成分的空燃比效应、发动机技术状况对汽车尾气成分的影响、尾气浓度与系统故障的关系、汽车尾气成分异常的原因、基于尾气成分的故障排查等问题,希望能够引起人们对这一问题的进一步关注,能够对发动机故障诊断发挥指导作用。
The composition of the exhaust gas is often closely linked with the condition of the engine. Based on the research of engine fault diagnosis based on exhaust gas analysis, this paper mainly analyzes and analyzes the effect of engine exhaust air-fuel ratio, the influence of engine technology conditions on vehicle exhaust components, the relationship between exhaust gas concentration and system faults, the causes of vehicle exhaust component anomalies, Based on the exhaust gas composition of the troubleshooting and other issues, hoping to arouse further attention to this issue, can play a guiding role in engine fault diagnosis.