C11 and C13 Engines for Caterpillar Built Machines Caterpillar


E390 Fuel Filter Restriction

Usage:

730 3F3
产生此代码的情况:

电子控制模块(ECM)可检测以下状况:

390(1)

  • 燃油滤清器压差开关断开一时。

  • 发动机至少已运转三秒钟。

注: 燃油滤清器压差开关将在 103 ± 14 kPa (15 ± 2 psi) 的压力下断开。

390(2)

  • 燃油滤清器压差开关断开四小时。

  • 发动机至少已运转三秒钟。

注: 燃油滤清器压差开关将在 103 ± 14 kPa (15 ± 2 psi) 的压力下断开。

系统响应:

390(1)

该事件代码为激活状态的同时,检查发动机指示灯亮起。 燃油滤清器压差开关闭合五分钟后,将记录事件代码。

注: 燃油滤清器压差开关将在 83 kPa (12 psi) 的压力下闭合。

390(2)

该事件代码为激活状态的同时,检查发动机指示灯亮起。 燃油滤清器压差开关闭合五分钟后,将记录事件代码。

注: 燃油滤清器压差开关将在 83 kPa (12 psi) 的压力下闭合。

390(1)

不会影响性能。

390(2)

ECM 会将功率降低 35%,每秒 17.5%。

  • 可能需要更换燃油滤清器。 更换燃油滤清器。 请参阅操作和保养手册。

  • 燃油管路可能阻塞。 检查燃油管路有无以下故障:阻塞, 皱缩管路 和 挤压管路。 如果发现燃油管路有故障,则应修理和/或更换管路。

  • 燃油滤清器压差开关可能存在故障。

测试步骤 1. 进行以下的诊断步骤: 燃油滤清器压差开关电路 - 测试

结果:

  • 正常 - 停止

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