摘  要
目前在国际上应用传感器最大的市场之一便是汽车行业，而氧传感器申报的专利数，位于汽车传感器之首。尤其是随着汽车排放法规的逐渐严格和社会对汽车排放污染控制的重视，氧传感器就起着至关重要的作用。汽车氧传感器故障会对发动机的工作、汽车的经济性及大气环保造成很大的影响。而我国仅近三年需改加氧传感器的旧车就超过几百万辆。所以，氧传感器(氧探头)的市场前景非常广阔。因此，技术人员提高对氧传感器的维修及检测技术也变得非常之关键。本文主要介绍了电控发动机氧传感器的技术特点和结构特点，根据氧传感器的结构和工作原理，分析了氧传器故障的产生原因及对电控发动机的影响，由氧传感器引发的故障实例，介绍检测与维修方法，且针对凌志400发动机氧传感器故障实例提出详细维修方案。

关键词 : 发动机，氧传感器，故障检修
ABSTRACT
现代ix354s店In the international community should be used at one of the great is the car industry, and oxygen sensors declaration of the patent number of the head of the sensor. especially with the discharge of regulation is strictly for the emission pollution and social control of the oxygen sensors will play a crucial role. the oxygen sensors to work with the engine, the economy of the environment and atmosphere a great influence.And china in the past three years to change with oxygen sensors old car is more than a million. therefore, oxygen sensor probe (oxygen) market prospects are very wide. therefore, technical staff to improve the maintenance of the sensor for oxygen and detection technology also become very critical. this paper mainly introduces  the engine for the technical characteristics of the sensor and the structural characteristics, depending on the structure of oxygen sensors and principle,Analysis was already handed over the failure of the cause and effect on engine  by the failure of the sensor for instance, to detect and repair,
ls400 oxygen sensor for the engine failure make a detailed scheme, the maintenance of instances.法拉利458报价
   

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