Exhaust Has Excessive Black Smoke
- 进气或排气系统
- 发动机速度/正时传感器
- 进气歧管压力传感器
- "Fuel Position"(油量位置)和/或 "FRC Fuel Limit"(空燃比控制油量限制)
- 闪存文件
- 燃油质量
- 气门调整
- 检查进气系统有无堵塞和漏气。
- 检查空气滤清器有无堵塞。
- 进行目视检查,查看进气管路有无阻塞和漏气的地方。
- 确保涡轮增压器修理情况良好。
- 检查排气系统有无堵塞。
- 修补发现的漏气处。 清除发现的堵塞物。 更换所有损坏的部件。
- 检查发动机转速/正时传感器的标定。 请参考故障诊断与排除, "正时 - 标定"。
- 确认曲轴和凸轮轴驱动齿轮设置在正确的方位。 请参考拆解与组装手册。
Intake Manifold Pressure Sensor(进气歧管压力传感器)、"Fuel Position"(油量位置)和/或 "FRC Fuel Limit"(空燃比控制油量限制)
- 当发动机以全负载运转时,监测 "Fuel Position"(油量位置)和 "Rated Fuel Limit"(额定油量限制)的状态。 如果 "Fuel Position"(油量位置)等于 "Rated Fuel Limit"(额定油量限制)并且 "Fuel Position"(油量位置)小于 "FRC Fuel Limit"(空燃比控制油量限制),则电子控制模块 (ECM) 工作正常。 否则,进行下一步骤。
- 确认没有关于进气歧管压力传感器的现行诊断代码。
- 监测 Caterpillar 电子技师 (ET) 上的 "Intake Manifold Pressure"(进气歧管压力)的状态。 发动机不运转时,"Intake Manifold Pressure"(进气歧管压力)应为 0 kPa (0 psi)。
注: "空燃比控制油量限制"故障只会导致加速时冒黑烟。 "空燃比控制油量限制"故障不会导致稳态操作时冒黑烟。
确认 ECM 中安装了正确的闪存文件。 请参考故障诊断与排除, "ECM 软件 - 安装"以了解该信息。
低温天气会对燃油特性造成不良影响。 有关改善低温操作条件下燃油特性的信息,请参考操作和保养手册。
检查气门调整是否正确。 请参考系统操作/测试和调整以了解关于气门调整的信息。
Caterpillar Information System:
Emulsion Has Been Found in Certain Applications{1107, 1306, 1317, 1326} Emulsion Has Been Found in Certain Applications{1107, 1306, 1317, 1326}
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