General Information (Air Inlet and Exhaust System)
这些发动机都配有电子控制燃料计量阀和两个带可调节连杆的执行器，从而对排气旁通阀（废气旁通阀）和阻风门进行控制。 电子控制模块（ECM）控制这些功能。 如果出现发动机性能降低或操作问题，请检查以下调整和操作是否正确：
- 执行器和执行器连杆
- 液压油压力正确
- 燃料计量阀
- 燃料质量设置（Btu 和比重）正确
- 预燃室的针阀设置正确
- 进气门间隙正确
- 排气阀间隙
- 气体进入阀间隙
- 排放
当调整燃料质量或针阀时，始终使用废气分析器工具。 进行调整时，务必将控制系统置于 "NOx 反馈"模式。
如果进气或排气系统不通畅的话，发动机的性能就会降低。
空气流过空气滤清器会遇到阻力。 阻力不得超过
背压是出口弯头的排气压力和大气压力的压力差。 排气背压不得超过
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