3054E and 3056E Industrial Engines and Engines for Caterpillar Built Machines Caterpillar


CID 1684 FMI 08

Usage:

3054E 304
产生此代码的情况:

此代码是由喷油泵生成。

喷油泵检测以下状态之一:

  • 喷油泵没有接收到位置信号。

  • 通过喷油泵接收的信号不正确。

电子控制模块(ECM)将会记录该诊断代码。 该诊断代码可在电子维修工具上查看。

系统响应:

喷油泵将提供开环发动机正时。 该诊断代码激活时,ECM 将发动机功率减额 20%。

发动机可能出现以下任意状况:

  • 发动机性能轻微损失

  • 排放增加

  • 发动机可能难以起动。

需要进一步的故障诊断与排除。

测试步骤 1.

检查有无以下现行代码:

  • 诊断代码 0320-02

  • 诊断代码 0320-11

结果:

  • 代码激活 - 转至测试步骤 2。

测试步骤 2. 进行以下的诊断步骤: 发动机转速 / 正时传感器电路 - 测试

结果:

  • 确定 - 停止

  • 异常 - 转至测试步骤 3。

测试步骤 3.

检查发动机上的电气线束。

密切注意以下区域:

  • P1/J1 ECM 接头

  • P40/J40 喷油泵接头

  • P1:59 发动机位置

  • P40:8 发动机位置

请参阅故障诊断与排除, "电气接头 - 检查"。

结果:

  • 确定 - 转至测试步骤 4。

测试步骤 4.

检查以下连接之间的导通性:

  • P1:59 发动机位置

  • P40:8 发动机位置

预期结果:

如果消除了故障,则停止。

如果故障仍然存在,检查线束,以确定故障原因。

修理或更换导线线束。

确保修理后故障排除。

结果:

  • 确定 - 停止

Caterpillar Information System:

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