CG137-08 and CG137-12 Industrial Engines Caterpillar


Air/Fuel Ratio Problem

Usage:

CG137-08 FPL

可能原因

  • 空燃比不正确

  • 标定 O2 传感器

  • 冷却液温度传感器

  • 进气歧管温度传感器

  • 进气歧管压力传感器

建议措施

空燃比不正确

空气 / 燃油混合气太稀将对发动机运行产生负面影响。 确认排放正常。 有关调整空燃比和调整燃油执行器的信息,请参阅测试与调整, "空燃比控制 - 调整"。

燃料能含量的改变将会改变空燃比。 获取供油的燃油分析。

供油压力必须充分且稳定。 确认燃油压力符合技术规格。

标定 O2 传感器

如果测量排放的任何一个 O2 传感器超出标定范围,则空燃比将会超出技术规格。 确认每个 O2 传感器的传感器标定正确。

务必使用准确的排放分析仪进行这些测量。

冷却液温度传感器

冷却液温度传感器产生的信号不正确会对空燃比造成负面影响。 确认传感器产生的信号正确。 使用 4C-6500 数字温度计 来检查冷却液温度传感器附近发动机的冷却液温度。 将读数与 Caterpillar 电子技师(ET)上显示的数值进行比较。 如有必要,更换传感器。

注: 务必使用准确的温度计进行您的测量。 使用没有正确标定的仪表可能会导致错误的故障诊断。

进气歧管空气温度传感器

进气歧管空气温度传感器产生的信号不正确会对空燃比造成负面影响。 确认传感器产生的信号正确。 用温度计测量进气歧管空气的温度。 将读数与 Caterpillar 电子技师(ET)上显示的数值进行比较。 如有必要,更换传感器。

注: 务必使用准确的温度计进行您的测量。 使用没有正确标定的仪表可能会导致错误的故障诊断。

进气歧管压力传感器

进气歧管压力传感器产生的信号不正确会对空燃比造成负面影响。 确认传感器产生的信号正确。 用仪表测量进气歧管压力。 将读数与 Cat ET 上显示的数值进行比较。 如有必要,更换传感器。

注: 务必使用准确的仪表进行您的测量。 使用没有正确标定的仪表可能会导致错误的故障诊断。

Caterpillar Information System:

G3304B and G3306B Engines Inlet and Exhaust Valve Seat Inserts - Remove and Install
G3512E and G3520E Generator Set Engines Air/Fuel Ratio Control - Adjust
G3304B and G3306B Engines Fuel Energy Content Problem
G3304B and G3306B Engines Inlet and Exhaust Valve Guides - Remove and Install
2009/08/03 Pistons and Piston Rings {1225, 1225}
CD44B and CD54B Vibratory Asphalt Compactors Alternator - Inspect
797F and 797F XQ Off-Highway Truck Braking System Piston Pump (Brake Cooling) - Extra Retarding
797F and 797F XQ Off-Highway Truck Braking System Motor Rotating (Brake Cooling) - Extra Retarding
797F and 797F XQ Off-Highway Truck Power Train Gear Pump (Brake, Rear Axle Lubrication) - Extra Retarding
G3304B and G3306B Engines Inlet and Exhaust Valves - Remove and Install
793F CMD Off-Highway Truck (Command for Hauling) Power Train Electronic Control System Fill Time for the Transmission Clutch - Calibrate
793F CMD Off-Highway Truck (Command for Hauling) Power Train Electronic Control System Engagement Pressure for the Transmission Clutch - Calibrate
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System Transmission Does Not Automatically Shift Into Neutral
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System Transmission Does Not Automatically Shift Back Into Gear
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System Transmission Does Not Respond to Shift Selector
Procedure for Removing and Installing the 343-2886 Control Valve Cover on G3500 Engines{1250, 1740, 5137} Procedure for Removing and Installing the 343-2886 Control Valve Cover on G3500 Engines{1250, 1740, 5137}
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0124 - FMI 03
797F and 797F XQ Off-Highway Truck Hydraulic System Control Valve (Brake Cooling, Hoist)
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0124 - FMI 04
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0126 - FMI 03
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0168 - FMI 03
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0168 - FMI 04
CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0177 - FMI 03
C13, C15, and C18 Tier 4 Final Engines Cylinder Head Valves
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.