Fuel Filter Is Restricted
ECM（Electronic Control Module，电子控制模块）检测到燃油滤清器差压异常。
如果下列事件代码激活，采用此步骤。 有关事件代码和此代码的默认触发点的信息，请参阅故障诊断与排除, "事件代码"。 必须进入 Caterpillar ET（Electronic Technician，电子技师）的监控系统才能查看此代码的当前触发点。
Show/hide table
| 事件代码 | ||
|---|---|---|
| 代码和描述 | 产生此代码的状况 | 系统响应 |
| E390(1) 燃油滤清器阻塞 | 经过过滤的燃油压力与未经过滤的燃油压力之差大于触发点压力。 该事件代码的延迟时间为一小时。 | 将会记录该代码。 |
| E390(2) 燃油滤清器阻塞 | 经过过滤的燃油压力与未经过滤的燃油压力之差大于触发点压力。 该事件代码的延迟时间为一小时。 | 发动机 ECM 会使发动机功率减额。 将会记录该代码。 |
可能原因
- 燃油滤清器滤芯
建议的措施
燃油滤清器滤芯
- 更换燃油滤清器滤芯。
- 重新起动发动机。
- E390(1) 事件代码的延迟时间为 1 小时。 如果更换燃油滤清器后不久事件代码变为激活状态，则故障可能是电气故障。 有关对油路进行故障诊断与排除的步骤，请参阅故障诊断与排除, "燃油滤清器压差 - 测试"。
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