威驰轿车前氧传感器故障的检修  

Troubleshooting of Pre-cat Oxygen Sensor on TOYOTA VIOS

作　　者：肖拯忠 吴忠 吕志超 

机构地区：[1]广东省机械高级技工学校,广东广州510450

出　　处：《汽车电器》2016年第5期23-25,共3页Auto Electric Parts

摘　　要：阐述一辆2007年款丰田威驰GL型轿车在行驶过程中,发动机出现"游车"的现象,利用金德K81解码仪读取故障码,发现是前氧传感器故障造成的。通过分析前氧传感器的结构和工作原理,根据故障现象对故障原因逐个进行分析判断,最终确定故障点并排除故障。During the driving of a 2007 TOYOTA VIOS GL car, engine idle speed fluctuation occurred. Using Kingtec K81 decoder to read the fault code, the fault was found to be caused by the pre-cat oxygen sensor. Through analyzing the structure and working principals of the pre-eat oxygen sensor, the article investigates fault reasons according the fault phenomenon, and finally identifies the fault point and removes the issue.

关 键 词：游车 氧传感器 原因分析 诊断排除 

分 类 号：U463.6[机械工程—车辆工程]