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故障现象一辆行驶里程仅为2492 km的北方尼奥普兰客车(装备潍柴WP10NG336天然气发动机),正常行驶中突然发动机无力,最高车速只能达到80km/h。驾驶人如果将发动机熄火后重新起动,动力又能恢复正常,但是行驶一段路程后依然会出现上述故障。故障诊断接车后在行李舱内找到故障诊断连接器,连接笔记本电脑,用toolkit诊断软件读取故障代码,读得的故障代码为411,其含义是NGP(燃气压力传感器)压力高于期
Fault phenomenon A mileage of only 2,492 km North Neoplan bus (equipped with Weichai WP10NG336 natural gas engine), normal running suddenly engine weakness, the maximum speed can only reach 80km / h. If the driver restarts the engine after the flameout, the power can be restored to normal again, but the above fault still occurs after a long journey. Troubleshooting After finding the fault diagnostic connector in the luggage compartment after connecting the vehicle, connect the laptop and read the error code with the toolkit diagnostic software. The error code read is 411, meaning that the pressure of the NGP (gas pressure sensor)