影响排气管冒黑烟和加速无力的原因，主要是混合气经燃烧后，其排放超出调控范围。使用诊断仪检测发动机控制模块存在两个当前故障：2511-001，左侧废气再循环调节器Y27/9调节不良；2348-001，增压压力控制系统增压压力过低。
The main reason that affects the exhaust pipe to emit black smoke and accelerate weakly is that the emission of mixture is beyond the control range after combustion. Use the diagnostic instrument to detect two current faults in the engine control module: 2511-001, poor adjustment of the left exhaust gas recirculation regulator Y27 / 9; 2348-001, low boost pressure of the boost pressure control system.
根据2511-001故障指导，检查导线和插接件连接正常，使用诊断仪的部件执行功能调节废气再循环调节器Y27/9，观察其没有动作。拆卸Y27/9检查发现此调节器被尾气的黑颗粒污染卡滞，不能被电机驱动打开或关闭废气再循环阀，清洗Y27/9使调节器可以正常打开及关闭。
According to the 2511-001 fault guidance, check that the connection of the wire and connector is normal, use the components of the diagnostic instrument to perform the function, adjust the exhaust gas recirculation regulator Y27 / 9, and observe that it does not act. The Y27 / 9 was disassembled and checked. It was found that the regulator was jammed by the black particles in the exhaust gas and could not be opened or closed by the motor drive. The Y27 / 9 was cleaned so that the regulator could be opened and closed normally.
根据2348-001故障指导，检查增压空气系统的密封性，使用专用工具对进气增压系统检测，发现进气温度传感器脱离进气管，将其装复，测试进气系统无漏气现象。
According to the 2348-001 fault guidance, check the tightness of the charge air system, use special tools to test the intake pressure system, and find that the intake temperature sensor is separated from the intake pipe, then install it again, and test that the intake system has no air leakage.
装复发动机附件，清除控制模块故障码，原地试验发动机可以将转速提升3000r/min以上，排气管随着发动机转速的提高喷出很多黑色颗粒，表明车辆一直处于燃烧不完全的工作状态。路试将发动机转速提升3000r/min以上时，车辆突然出现坐车现象，此现象出现后发动机的动力降低，空挡时发动机转速不能提到3000r/min以上，只能保持在2700r/min。
When the engine accessories are replaced and the control module fault code is cleared, the engine speed can be increased by more than 3000r / min in situ test, and a lot of black particles are ejected from the exhaust pipe with the increase of engine speed, indicating that the vehicle has been in the working state of incomplete combustion. When the engine speed is increased by more than 3000r / min in the road test, the vehicle suddenly appears the phenomenon of sitting. After this phenomenon occurs, the power of the engine decreases. In neutral gear, the engine speed can not be increased to more than 3000r / min, but can only be maintained at 2700r / min.
使用诊断仪检测发现2348-001故障码依然存在，再一次检测增压空气系统密封性正常，检查增压压力传感器的数值，在加速时数值变化小且存在滞后现象。将压力传感器拆下检查无堵塞漏气现象，使用真空泵改变增压压力传感器真空度，观察诊断仪的数值变化不明显，判断增压压力传感器损坏。
It is found that the 2348-001 fault code still exists by using the diagnostic instrument. Once again, it is detected that the tightness of the charge air system is normal, and the value of the boost pressure sensor is checked. During acceleration, the value changes little and there is hysteresis. Remove the pressure sensor to check that there is no blockage and air leakage. Use the vacuum pump to change the vacuum degree of the boost pressure sensor. Observe that the value of the diagnostic instrument does not change significantly, and judge that the boost pressure sensor is damaged.
故障排除：清洗废气再循环调节器Y27/9，更换增压压力传感器，进行发动打吩空制模块数据匹配，故障排除。
Troubleshooting: clean the exhaust gas recirculation regulator Y27 / 9, replace the boost pressure sensor, match the data of the engine air handling module, and troubleshooting.
故障总结：通过对发动机检查及根据诊断仪的故障指导，分析柴油发动机废气涡轮增压器的结构和工作原理，逐步排除可能存在故障的部件，将故障彻底排除。
Fault summary: by checking the engine and according to the fault guidance of the diagnostic instrument, analyze the structure and working principle of the diesel engine exhaust turbocharger, gradually eliminate the components that may have faults, and completely eliminate the faults.
The main reason that affects the exhaust pipe to emit black smoke and accelerate weakly is that the emission of mixture is beyond the control range after combustion. Use the diagnostic instrument to detect two current faults in the engine control module: 2511-001, poor adjustment of the left exhaust gas recirculation regulator Y27 / 9; 2348-001, low boost pressure of the boost pressure control system.
根据2511-001故障指导，检查导线和插接件连接正常，使用诊断仪的部件执行功能调节废气再循环调节器Y27/9，观察其没有动作。拆卸Y27/9检查发现此调节器被尾气的黑颗粒污染卡滞，不能被电机驱动打开或关闭废气再循环阀，清洗Y27/9使调节器可以正常打开及关闭。
According to the 2511-001 fault guidance, check that the connection of the wire and connector is normal, use the components of the diagnostic instrument to perform the function, adjust the exhaust gas recirculation regulator Y27 / 9, and observe that it does not act. The Y27 / 9 was disassembled and checked. It was found that the regulator was jammed by the black particles in the exhaust gas and could not be opened or closed by the motor drive. The Y27 / 9 was cleaned so that the regulator could be opened and closed normally.
根据2348-001故障指导，检查增压空气系统的密封性，使用专用工具对进气增压系统检测，发现进气温度传感器脱离进气管，将其装复，测试进气系统无漏气现象。
According to the 2348-001 fault guidance, check the tightness of the charge air system, use special tools to test the intake pressure system, and find that the intake temperature sensor is separated from the intake pipe, then install it again, and test that the intake system has no air leakage.
装复发动机附件，清除控制模块故障码，原地试验发动机可以将转速提升3000r/min以上，排气管随着发动机转速的提高喷出很多黑色颗粒，表明车辆一直处于燃烧不完全的工作状态。路试将发动机转速提升3000r/min以上时，车辆突然出现坐车现象，此现象出现后发动机的动力降低，空挡时发动机转速不能提到3000r/min以上，只能保持在2700r/min。
When the engine accessories are replaced and the control module fault code is cleared, the engine speed can be increased by more than 3000r / min in situ test, and a lot of black particles are ejected from the exhaust pipe with the increase of engine speed, indicating that the vehicle has been in the working state of incomplete combustion. When the engine speed is increased by more than 3000r / min in the road test, the vehicle suddenly appears the phenomenon of sitting. After this phenomenon occurs, the power of the engine decreases. In neutral gear, the engine speed can not be increased to more than 3000r / min, but can only be maintained at 2700r / min.
使用诊断仪检测发现2348-001故障码依然存在，再一次检测增压空气系统密封性正常，检查增压压力传感器的数值，在加速时数值变化小且存在滞后现象。将压力传感器拆下检查无堵塞漏气现象，使用真空泵改变增压压力传感器真空度，观察诊断仪的数值变化不明显，判断增压压力传感器损坏。
It is found that the 2348-001 fault code still exists by using the diagnostic instrument. Once again, it is detected that the tightness of the charge air system is normal, and the value of the boost pressure sensor is checked. During acceleration, the value changes little and there is hysteresis. Remove the pressure sensor to check that there is no blockage and air leakage. Use the vacuum pump to change the vacuum degree of the boost pressure sensor. Observe that the value of the diagnostic instrument does not change significantly, and judge that the boost pressure sensor is damaged.
故障排除：清洗废气再循环调节器Y27/9，更换增压压力传感器，进行发动打吩空制模块数据匹配，故障排除。
Troubleshooting: clean the exhaust gas recirculation regulator Y27 / 9, replace the boost pressure sensor, match the data of the engine air handling module, and troubleshooting.
故障总结：通过对发动机检查及根据诊断仪的故障指导，分析柴油发动机废气涡轮增压器的结构和工作原理，逐步排除可能存在故障的部件，将故障彻底排除。
Fault summary: by checking the engine and according to the fault guidance of the diagnostic instrument, analyze the structure and working principle of the diesel engine exhaust turbocharger, gradually eliminate the components that may have faults, and completely eliminate the faults.
