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怎么判断电喷发动机的故障

来源:http://www.jnrunao.com/ 日期:2021-05-27 发布人:runao
现在,很多轿车,汽车都是在使用电喷式发动机,一般情况下电喷发动机很少发生故障,但一旦出现故障一定借助故障代码才能排除。润奥奥迪维修顾问整理了一些诊断方法供车主参考!
Now, many cars and cars are using EFI engine. In general, EFI engine seldom fails, but once there is a failure, it must be removed with the help of fault code. Runao Audi maintenance consultant sorted out some diagnostic methods for car owners' reference!
1、装单个发光二管
1. Installing a single LED
a.在闭合点火开关情况下,不起动发动机,用螺丝刀插入装单个发光二管的发动机电子控制器模式选择旋钮中。
a. When the ignition switch is closed and the engine is not started, insert a screwdriver into the mode selection knob of the engine electronic controller with a single LED.
b.按顺时针方向把旋钮拧到底,等待2s后,再用螺丝刀按逆时针方向拧到底,此时发光二管开始闪烁,显示故障代码。
b. Turn the knob to the end clockwise, wait for 2S, and then turn it to the end anticlockwise with a screwdriver. At this time, the LED starts to flash and display the fault code.
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2、双发光二管
2. Double LED
a.在闭合点火开关的情况下,不起动发动机,用螺丝刀插入发动机电子控制器模式选择旋钮中,按顺时针方向拧到底。
a. When the ignition switch is closed and the engine is not started, insert a screwdriver into the mode selection knob of the engine electronic controller and turn it clockwise to the end.
b.等到发光二管闪亮时(发光二管闪烁表示模式选择号,即模式发光二管闪烁1次;第2种模式发光二管闪烁2次)。当闪烁的模式号是所需模式号时立刻把旋钮按逆时针方向拧到底,即开始显示故障代码。
b. Wait until the LED flashes (the LED flashes to indicate the mode selection number, that is, the mode LED flashes once; In the second mode, the LED flashes twice. When the flashing mode number is the required mode number, immediately turn the knob to the end in a counterclockwise direction, and the fault code will be displayed.
3、共同开关法
3. Common switching method
在有些车系电控系统中,空调控制面板上的控制开关可兼作诊断开关。一般是把off键和Warmer键同时按下,数字显示仪表板上便显示出来。当屏上出现…后出现88代码时,即进入自诊断状态。
In some electric control systems, the control switch on the air conditioning control panel can also be used as a diagnostic switch. Generally, press the off key and the warm key at the same time, and the digital display will be displayed on the instrument panel. When the 88 code appears after... On the screen, it will enter the self diagnosis state.
4、用点火开关约定操作法
4. Using ignition switch to operate
约定操作法是汽车制造厂家已规定的方法。一般情况下点火开关在5s内通、断3次即进入自诊断状态。
The conventional operation method has been stipulated by automobile manufacturers. In general, the ignition switch will enter the self diagnosis state when it is turned on and off three times within 5S.
5、用加速踏板的约定操作法首先闭合点火开关,不起动发动机,在5s内踩加速踏板5次,即进入故障自诊断状态。例如,德国的宝马轿车等。
5. First, close the ignition switch, do not start the engine, and step on the accelerator pedal 5 times within 5 seconds, that is, enter the fault self diagnosis state. For example, BMW cars in Germany.
6、用专用解码仪法
6. Using special decoder
所有车型的故障代码读取均可采用解码仪进行。但是,有些车型只能使用此法。例如,奥迪100(V6)等。
The fault code of all models can be read by decoder. However, some models can only use this method. For example, Audi 100 (V6) and so on.
此文关键词: 济南奥迪专修  

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