Mainly electronic control maintenance, such as engine computer, aftertreatment system, urea pump maintenance module, high-pressure pump, sensor and other projects. It is suggested that you can visit the school on the spot to get to know it, walk more and see more. When troubleshooting an EFI vehicle, first check and confirm whether other engine systems unrelated to the fuel injection system are working normally. If other systems are working normally, check the fuel injection system according to the fault symptoms.
The electronic control system and emission control device of cars with different models, production dates and engine models are also different. It is necessary to find out the model year and engine model according to the vehicle identification code (VIN) 17-digit code of the car for correct maintenance.