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List of the contents of this article:

• 1, Why do diesel cars add urea
• 2, Does the national 5 engine affect the engine if it does not burn urea?
• 3, What is the impact of the car not burning urea on the engine?
• 4, What is the function of engine urea?
• 5, The urea on the car is gone. Will it affect the engine?
• 6 、 The urea light is yellow. Is it normal for the engine to be loud?

Why do diesel cars need to add urea

The use of urea can reduce the emission of pollutants and make the vehicle more environmentally friendly. The diesel car is equipped with a special urea tank, and urea is added inside. As long as the engine rotates, urea will be consumed.

Urea is added to cars mainly to meet emission standards. Only diesel vehicles can add urea. The state stipulates that electric injection diesel locomotives must add urea, because the exhaust emissions of diesel vehicles are relatively large. The addition of urea can reduce carbon-oxy compounds in the exhaust gas and reduce the emission of pollutants, thus making diesel vehicles more environmentally friendly.

Urea is added to diesel vehicles to reduce automobile exhaust emissions and protect the atmospheric environment.

Does the national 5 engine affect the engine if it does not burn urea?

If it is done according to the regulations, the discharge light will be turned on without adding urea, adding water, and mixing urea with water, limiting the torque, and the car is very weak; it has no effect on the life and performance of the engine itself, no effect on the catalyst carrier, and no effect on the emission and NOx sensor.

Guowu diesel vehicles that do not burn urea for a long time will easily cause blockage of the exhaust pipe, increase fuel consumption, reduce engine torque, and more importantly, easily cause damage to the scr system. The SCR system is that when carbon-oxy compounds are found in the exhaust pipe, the urea tank can automatically spray out the exhaust gas treatment solution of the diesel engine.

Damage to the SCR injection system: If there is no urea for a long time, the nozzle, pipeline and urea pump in the SCR system may be crystallized and blocked, or damaged by high temperature.

Influential. When cars do not burn urea for cars, because there is no operation of the SCR system, the nitrogen oxide compound (NOx) in the exhaust gas cannot be catalytically reduced, so the exhaust gas released must be bad for the ecological environment.

What is the impact on the engine if the car does not burn urea?

1. Damage to the SCR injection system: If there is no urea for a long time, the nozzle, pipeline and urea pump in the SCR system may be crystallized and blocked, or damaged by high temperature.

2. If the car does not burn urea, it has an impact on the engine. When the car does not burn urea, due to the operation of the SCR system, the nitrogen and oxygen compounds in the exhaust gas cannot be catalytically reduced. The exhaust gas released is definitely not good for the ecological environment, and the power will decrease.

3. If it is done according to the regulations, the exhaust light will be turned on without adding urea, adding water, and mixing urea with water, limiting the torque, and the car is very weak; it has no effect on the life and performance of the engine itself, no effect on the catalyst carrier, and no effect on the emission and NOx sensor.

What is the function of engine urea?

1. Urea, scientific name automobile, is a diesel engine exhaust gas treatment liquid, which is used in diesel engines. It can react with nitrogen oxides in the exhaust gas, reduce nitrogen oxide emissions, and optimize engine performance and fuel consumption.

2. The main function of engine urea is to convert nitrogen oxides (NOx) generated by diesel engines into non-toxic nitrogen (N2). Reduce the content of NOx in the exhaust gas to meet the national emission standards. Urea cooperates with the SCR system to filter and remove the main emission polluting gas NOx and particles of the diesel engine.

3. Vehicle urea plays a key role in the power, fuel consumption, etc. of the vehicle. If diesel is not loadedThe exhaust gas treatment liquid, or the use of urea solution with insufficient purity and poor quality, will cause the vehicle engine to automatically slow down.

The urea on the car is gone. Will it affect the engine?

No burning urea in the car has an impact on the engine. When the car does not burn urea for the vehicle, because there is no SCR system, the nitrogen and oxygen compounds in the exhaust gas cannot be catalyzed and reduced. The released exhaust gas is definitely not good for the ecological environment, and the power will decrease.

Yes. When the truck does not burn urea, the nitrogen oxide compound (NOx) in the exhaust gas cannot be catalytically reduced, so the exhaust gas released must be bad for the ecological environment.

The car does not burn urea, which has an impact on the engine.When the car does not burn urea, due to the operation of the SCR system, the nitrogen and oxygen compounds in the exhaust gas cannot be catalytically reduced. The exhaust gas released is definitely not good for the ecological environment, and the power will decrease.

But not using urea will not affect the engine. Ammonia will react with nitrogen oxides under the action of catalysts to form harmless nitrogen and water. In order to meet the emission of diesel vehicles, urea must be added to the electric injection diesel engine. Generally speaking, 100 liters of diesel consumes about 4 liters of urea.

Influential. When cars do not burn urea for cars, because there is no operation of the SCR system, the nitrogen oxide compound (NOx) in the exhaust gas cannot be catalytically reduced, so the exhaust gas released must be bad for the ecological environment.

The urea light is yellow. Is it normal for the engine to be loud?

If the air flow sensor does not work normally, the ECU will not get the correct air intake signal, resulting in abnormal operation of the engine. Spark plug carbon accumulation will cause abnormal phenomena such as difficulty in starting the vehicle, unstable idle speed, exhaust gas exceeding the standard, increased fuel consumption, etc., and will also cause the engine fault light to turn on.

If the engine fault light is yellow, it is generally believed that it is caused by poor combustion of emission faults. Therefore, you must first check the data flow of the vehicle to see if there is a reason for the failure of the accessories. If so, you must replace the accessories first. If there is no problem with the data flow, then it may be a soft fault -- that is, the failure of the oil line link.

The reason why the urea light of the car lights up is: the vehicle is weak, the urea consumption is normal, the fault phenomenon: the owner reacts that the vehicle is weak, the urea consumption is normal, and the emergency refueling can find a small amount of white smoke from the silencer; fault analysis: use the diagnostic instrument to read the fault code that the engine emission exceeds the standard, and there are no other faults.