C3.4B Engines Caterpillar


Injector Code - Calibrate

Usage:

CD-44B 398
喷油器代码为七位字母数字组合代码,各喷油器均有提供。 代码压印在喷油器上。 电子控制模块(ECM)使用该代码平衡喷油器的性能。

使用电子维修工具向 ECM 中加载喷油器代码。

如果发生下述任何情况,必须向 ECM 中加载喷油器代码:

  • 更换了电子单体喷油器。

  • 更换 ECM。

  • 气缸间互换了电子单体喷油器。

  • 630-2 诊断代码为激活状态。

如果更换了 ECM,喷油器代码通常会作为"复制配置"程序的一部分转移到新 ECM。 如果"复制配置"程序失败,必须手动加载喷油器代码。

安装喷油器代码




    图 1g02738616

    电子单体喷油器典型示例

    (1) 喷油器代码位置

  1. 记录每个电子单体喷油器的喷油器代码。

  1. 将电子维修工具连接到诊断接头上。 参考故障排除, "电子维修工具"。

  1. 把钥匙开关转到接通位置。

  1. 请选择电子维修工具的下列菜单选项:

    • 维修

    • 标定

    • 喷油器调整标定

  1. 选择适当的气缸。

  1. 点击 "Change(更改)"按钮。

  1. 输入测试步骤 1 中记录的相关喷油器代码。

  1. 点击 "OK(确定)"按钮。

    将喷油器代码加载到 ECM 中。

  1. 根据需要,对各气缸重复本程序。

互换电子单体喷油器

互换电子单体喷油器有助于确定电子单体喷油器或气缸中是否存在燃烧问题。 如果两个气缸间互换了发动机内当前所安装的两个电子单体喷油器,还必须互换喷油器代码。 记录要互换的两个喷油器的喷油器修正代码。 使用电子维修工具输入正确气缸的喷油器代码。

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