一辆捷达车加速不良,怠速时发动机偶尔发抖,按常规检测程序读取故障码及数据流,发现氧传感器数值偏离正常标准,空气流量计数值及喷油量也偏大,尾气汽油味重。开始,没有对氧传感器进行检测,认为氧传感器数值偏离是其他因素引起的。重点对空气流量计、喷油嘴、火花塞等元件进行检 A Jetta accelerated poor, the engine idles occasionally trembling, according to routine testing procedures to read the fault code and data flow and found that oxygen sensor values ​​deviate from the normal standard, the air flow meter values ​​and fuel injection is also large, tail gas flavor. Initially, there was no detection of the oxygen sensor, which was caused by other factors. Focus on the air flow meter, fuel injector, spark plugs and other components for testing