奇瑞两用燃料维修手册00

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奇瑞两用燃料维修手册00-、CNG系统工作原理...........................................................................................................................................................1
二、主要零部件技术参数........................................................................................................................................................2
2.1 ECU..................................................................................................................................................................................3
2.2 NG1-2减压器..................................................................................................................................................................3
2.3 燃气导轨..........................................................................................................................................................................3
2.4 CNG 系统安装扭力表.....................................................................................................................................................4
三、主要零部件维修................................................................................................................................................................5
3.1维修保养专用工具..........................................................................................................................................................5
3.2 NG1-2 减压器..................................................................................................................................................................5
3.2.1 NG1 维修保养.........................................................................................................................................................6
3.2.2 NG1－2 减压器维修注意事项：............................................................................................................................6
3.2.3 NG1－2减压器修理包............................................................................................................................................7
3.2.4 NG1－2 减压器故障诊断........................................................................................................................................8
3.2.5NG1－2 爆炸图........................................................................................................................................................9
3.2.6 NG1－2减压器的维修..........................................................................................................................................11
3.2.7减压阀常见故障分析及排除................................................................................................................................16
3.3燃气导轨故障分析........................................................................................................................................................19
3.4燃气电脑故障分析........................................................................................................................................................22
3.5其他产品维修方法（见下表）....................................................................................................................................25
3.5.1 气瓶，瓶口阀损坏问题........................................................................................................................................25
四、诊断设备1 -燃气诊断仪使用及故障排除...................................................................................................................26
4.1软件安装........................................................................................................................................................................26
4.2软件使用........................................................................................................................................................................29
五、CNG系统电路图.............................................................................................................................................................35
六、双燃料车常见问题故障排除方法...................................................................................................................................36