In daily life, the car is something that everyone is familiar with, for the maintenance knowledge of the car, everyone can say one or two, but for the diesel series of engineering vehicles, trucks and other vehicles that we are not familiar with, many people are not clear, this article is mainly to explain if the diesel vehicle diagnostic instrument is used to do Yuchai ECU data brush, if the ECU brush well, That can save a lot of money!
PS90 diesel King diagnostic instrument
Yuchai engine series models
Using PS90 diesel King can brush the data of diesel engine ECU of engineering vehicles, trucks and other models, taking Yuchai as an example, the operation method is as follows: turn on the ignition switch, turn off all electrical appliances, forbid starting the vehicle during operation, PS90 connect the vehicle diagnosis excuse, open PS90 APP to enter "Special function", select "ECU brush";
Select "Bosch Electric Control";
Select "Yuchai";
Please back up the original car data before writing the data, select "Data read" for backup operation;
Confirm engine data file number and software version;
Do not disconnect the decoder during the data reading process, ensure that the battery voltage is not lower than the operating voltage of the ECU, select "Yes" to continue;
Enter the file name, for example, P1175V740, and select OK to save the file.
If the data backup is successful, select "OK" to return to the previous menu.
Select "Data brush";
During the connection, wait for the next prompt.
Confirm the engine software version information and select "OK" to continue.
The information illegally crawled from experience
Select the data file to be brushed into the ECU, select "Yes" to confirm the start of brushing, during which do not disconnect the PS90 diagnostic device and the vehicle, and do not turn off the switching power of the vehicle;
At the beginning of writing, the system erases old data and writes new data;
Wait patiently for a few minutes for the data rewrite process;
After the data is successfully written, turn off the ignition switch and sleep for more than 15 seconds, and then test the engine without fault code, and check to confirm that the engine is not abnormal. Select "Back" button to exit and disconnect the PS90 from the vehicle;
This document is mainly for the ECU of Yuchai series, other models are not supported!
The tool used this time is PS90 diesel King, and the diesel vehicle diagnostic instrument with the same function can also be used as a reference!