卡罗拉发动机怠速过高的故障排除  

Troubleshooting of High Idle Speed of Corolla Engine

作　　者：倪永斌 NI Yong-bin(Guangdong Mechanical Technician College,Guangzhou 510450,China)

机构地区：[1]广东省机械技师学院,广东广州510450

出　　处：《汽车电器》2021年第5期80-81,83,共3页Auto Electric Parts

摘　　要：一辆卡罗拉轿车怠速过高,通过检测与诊断,发现故障的原因是PCV阀损坏,导致进气量增加,造成发动机怠速过高。通过改装更换PCV阀,来恢复该车怠速过高的故障。The idle speed of a corolla car is too high.Through detection and diagnosis,it is found that the cause of the fault is the damage of PCV valve,which leads to the increase of air intake and the high idle speed of the engine.By refitting and replacing PCV valve,the fault of high idle speed can be recovered.

关 键 词：PCV阀 怠速过高 检测与诊断 

分 类 号：U463.6[机械工程—车辆工程]