What are the manifestations of bronchial air leakage?

The symptoms of air leakage in the intake manifold are as follows: 1. When the intake manifold leaks air, the pressure inside will change, and the pressure detection will be abnormal because it does not take the normal channel; 2. Because the air leakage is irregular, it may rise and fall when idling. The other is that the computer receives the idle speed through the throttle sensor, but the idle speed is not within the specified range, then the computer will automatically adjust the operation of the idle motor. At this time, there will also be the phenomenon of high and low; 3. If you want to know whether there is air leakage, you can check the vacuum degree of the intake manifold. If the vacuum degree is not within the idling range, the possibility of air leakage can be judged.