The impact of not replacing the car air filter on the car:
1. The engine runs at idle speed for a long time
When the engine runs at idle speed for a long time, a certain negative pressure will be generated at the wheel back of the turbocharger and the impeller, which will cause the oil in the intermediate body to leak out. Various car crash detections are the means of modern management of car applications. Through machine vision-based automobile inspection equipment and modern inspection technology, the working conditions of automobiles can be quickly checked and diagnosed, and the operating level of automobiles can be judged, so that the vehicle can be maintained and repaired in time, so as to ensure the integrity of the vehicle in use and improve the production efficiency of transportation. The establishment of the automobile comprehensive performance testing station provides the necessary testers to step on the system quickly according to the time prompts on the dot matrix screen when stopping the brake force testing, so the engine should be prevented from idling for a long time;
2. Poor oil return
In use, if the oil return line of the oil is deformed or blocked, the oil return is not smooth, and the oil pressure in the intermediate body is too high. Therefore, it is necessary to frequently check whether the oil return pipeline is unblocked to ensure that the oil can flow back to the oil pan normally;
3. The crankcase pressure of the engine is too high
If the exhaust gas pressure of the crankcase exceeds the specified value, the pressure in the oil return line of the supercharger will increase, and the oil return will not be smooth, resulting in oil leakage of the sealing ring. Always check the ventilation status of the crankcase and whether the lower exhaust line is unobstructed. The engine should pay extra attention to whether the oil and gas separator can work normally, so as to avoid the mixed gas in the crankcase being drawn into the compressor and cylinder along the exhaust pipe, causing the engine to burn oil;
4. The air filter is blocked;
The engine has been using automobile testing equipment for a long time, which includes a lot of testing equipment, including exhaust gas testing equipment. It is an instrument used to detect whether the content of gas elements in automobile exhaust gas exceeds the standard.

Let's talk about its use and precautions.
Inspection procedure:
1. If necessary, install the tachometer of automobile detection equipment on the engine.
2. The engine accelerates from idle speed to 0.7 rated speed, and then drops to high idle speed after maintaining for 30s.
3. Insert the sampling probe into production and research, what are the belt inspections in agricultural machinery inspection.
4. After the inspection of the belt, the filter element of the air filter will be blocked due to excessive dust accumulation, which will cause the negative pressure of the air intake of the compressor to be too high. There will be oil leakage from the sealing ring formed by too high negative pressure at the wheel back of the impeller. Therefore, it is necessary to check the air filter regularly to ensure that the filter element is not blocked or punctured, and the normal air supply state is maintained;
5. The sealing ring is worn or invalid.