Fuel Pressure Is High
如果下列任一事件代码为激活或记录状态，请使用本步骤进行故障诊断与排除。
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| J1939 代码和描述 | 注释 |
|---|---|
| 1390-15
发动机燃油阀 #1 进口绝对压力：高 - 最低严重程度 (1) |
提供给燃油计量阀的压力高于触发点，且延迟时间已经终止。
警报输出被激活。 记录该代码。 |
- 燃气压力调节器的设置不正确
- 燃气压力调节器故障
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| 故障诊断与排除测试步骤 | 数值 | 结果 |
1. 检查代码 A. 连接 Cat® 电子技师 (ET) 与维修工具接头。 B。 查找与事件代码系统相关的现行代码。 |
代码 |
结果：相关代码为现行状态。 修理：在继续进行此测试前，诊断并排除所有相关代码。 结果：代码 1390-15 为激活或记录状态。 转至测试步骤 2。 |
2. 监视提供给燃油计量阀的压力 A. 通过 Cat ET 监视"发动机燃油阀 #1 进口绝对压力"参数。 |
压力 |
结果：提供给阀的压力不符合技术规格。 转至测试步骤 3。 |
3. 调节调节器 A. 调节燃气压力调节器，以获得正确的压力。 |
压力 |
结果：未获得正确的压力。 修理：修理或更换调节器。 结果：获得正确的压力。 |
如果以上步骤未解决问题，请联系当地 Cat 代理商的技术通信员（TC）。 如需进一步的帮助，您的 TC 可以通过代理商解决方案网络（DSN）与您交谈。
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