论文部分内容阅读
故障现象一辆厦门金龙XML6857型客车,搭载YC4G200-30国Ⅲ发动机(采用博世高压共轨柴油喷射控制系统),行驶里程约为17万km。据驾驶人反映,该车出现发动机无法起动且发动机故障灯常亮的现象。故障诊断接车后试着起动发动机,起动机运转有力,而发动机始终无法着机,并且发动机故障灯常亮。与驾驶人沟通得知,半个月前该车发动机曾出现加速无力、转速最高不超过1700r/min的现象,直至发动机无法起动。用故障检测仪进行检测,读得故障代码如表1所示。其中,故障代码P1637和P2159为历史故障代码,可以清除;
Fault phenomenon A Xiamen Golden Dragon XML6857 bus equipped with YC4G200-30 country Ⅲ engine (using Bosch high pressure common rail diesel injection control system), mileage is about 170,000 km. According to the driver reflected that the car appeared engine can not start and the engine fault light is always on phenomenon. Troubleshooting After attempting to start the engine, the starter will operate vigorously while the engine will not be able to start up, and the engine fault light will turn on. Communication with the driver learned that two weeks ago the car had accelerated weakness, speed up to 1700r / min phenomenon, until the engine can not start. With the fault detector for testing, read the fault code shown in Table 1. Among them, fault codes P1637 and P2159 are historical fault codes that can be cleared;