If the vehicle is unable to accelerate or the exhaust pipe emits white smoke, it is necessary to find professional equipment to clean the urea crystals in the exhaust pipe. If the vehicle fault code shows that urea pressure is low, urea needs to be replenished. If the engine torque is limited and the speed cannot be increased at1800rpm, the urea pump and sensor need to be replaced.
Introduction:
1. When the SCR warning light blinks slowly and the screen shows that the urea level of the vehicle is ≤ 10%, it is necessary to add the national six special standard urea in time.
2. When the SCR warning light flashes and the screen shows that the urea level of the vehicle is ≤5%, the vehicle will prompt to stop. After parking, the torque will be limited to 75% to protect the vehicle. At this time, it is necessary to add the national six special standard urea immediately.
3. When the SCR warning light is always on and the screen shows that the urea level of the vehicle is ≤2.5%, the vehicle will immediately limit the torque to 75% and the speed to 20km/h to protect the vehicle. At this time, please immediately add Guoliute compliant urea.
4. When the urea capacity in the lower right corner shows normal (i.e. > 10%) and the SCR warning light still blinks or blinks slowly, special attention should be paid. This situation may be caused by unqualified urea quality, abnormal EGR valve and abnormal urea injection. If it is not handled in time, the vehicle will force the speed limit and torque limit, which will reduce the performance of the vehicle, so it is necessary to go to the maintenance station in time to check the cause of SCR failure.