G3304B and G3306B Engines Caterpillar


Intake Manifold Air Pressure Is High

Usage:

G3304B A4E
使用本步骤诊断和排除进气歧管空气温度高故障,或者在下列任一事件代码为激活状态时使用本步骤。 请参阅故障诊断与排除, "诊断故障代码"以了解有关诊断代码的信息。 必须进入 Caterpillar 电子技师(ET)上的发动机监控系统才能查看这些代码的当前触发点。 关于发动机监控系统的信息,请参阅故障诊断与排除, "发动机监控参数"。

表 1
发动机事件    
J1939 代码和说明     产生此代码的状况     系统响应    
3563-0 发动机进气歧管 #1 绝对压力:高 - 最严重(3)     进气岐管空气压力高于触发点已达到编程的延迟时间。     记录该代码。
红色停机灯点亮。
发动机停机。    
3563-15 发动机进气歧管 #1 绝对压力:高 - 最轻微(1)     记录该代码。
黄色报警指示灯会点亮。

可能原因

  • 诊断代码

  • 排气阻力

建议的措施

诊断代码

使用 Cat ET 检查有无现行或记录的诊断代码。 在继续执行本步骤之前,诊断并排除所有现行代码。

排气阻力

  1. 检查排气系统有无阻塞和/或漏气。 有关详细信息,请参阅测试和调整。

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