适应发动机控制单元
必须“示教”不同的皮尔博格部件
安装后空转速度过高？发动机控制单元的新零件不起作用或是新部件已经损坏？测试器上的“基本设置”是什么意思？
我们将一一告知，安装新部件时有哪些注意事项。
What does "basic settings" mean on the tester?
现代车辆部分配有非常复杂的电子部件，为此在发动机控制单元 中存储了非常独特的特性曲线数据。将此类部件换新时，必须先让 发动机控制单元重新“学习”相应特性值。否则可能导致典型的客 户投诉，如“新部件不工作”或“安装后高怠速”。
主要涉及：
- 空气量流传感器、
- 步进电动机、
- 节气门/调节阀、
- 怠速充量调节器以及
- 电动废气再循环阀。
Information on diagnostics and coding
When installing new components, you should observe the following points:
- Check whether coding or adaptation is required as per the manufacturer's documentation.
- Use suitable tools and devices to perform basic settings.
- Pay attention to special Pierburg Service Information that is relevant for the respective component.
- Check the part number and the wiring diagram to ensure that the spare part is compatible.
- Check that cables and plug-in connections are correctly fitted and check for possible damage.
Overview of affected components
Some examples of components that require adaptation or teaching-in in the control unit:
| Component | Function |
| Air mass sensor | Detects air quantity for calculating the injection |
| Stepper motor (idling actuator) | Regulates idle speed |
| Throttle body (drive-by-wire) | Electronically controls air supply |
| Electric EGR valve | Reduces emissions through exhaust gas recirculation |
| Electric drive module (swirl flap controller) | Optimises air conduction in the intake air system |
Why teaching-in is so important
Many electronic components such as mass air flow meters, throttle valves and EGR valves have specific map data stored in the engine control unit. This data is matched to the original component. When a component is replaced, the old data often does not match the new part. Without adaptation, problems such as poor idling speed, increased fuel consumption or even the engine warning light illuminating may occur.
Find out more about the correct procedure for diagnosing and programming control units in our video about on-board diagnostics. It offers practical insights into the world of industrial and vehicle electronics:
On-Board Diagnostics Part 1: Introduction
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