According to riders, his car had two weak accelerations in the recent rainstorm, and the body trembled slightly when accelerating, just like the feeling of insufficient gasoline in the fuel tank. He consulted the riders around him. Some people think that the line is aging, some people think that water vapor may leak into the body line, and so on.
What is the reason for this phenomenon? The reporter interviewed Mr. He, the technical director of Fuzhou Automobile Service Co., Ltd., and he analyzed the carburetor and EFI of the automobile:
If the carburetor-based vehicle fails in such a specific environment, the scope can be basically reduced to the following points: ignition system, high-voltage line, distributor, ignition coil and so on. Flashover and short circuit caused by breakage, electric leakage and humidity; It is possible that water vapor enters the intake pipe and instantly enters the carburetor to participate in combustion, resulting in unstable engine power decline; Other special problems should be judged according to the maintenance procedures such as vehicle type and test run.
If the EFI vehicle is in this specific situation, several basic fault ranges can also be obtained: the ignition system is damp; The main sensor connector is damp, and the general EFI automobile sensor is waterproof, which has a certain relationship with the life of the car; This is also an important factor, considering that the parts of flooded vehicles are most susceptible to moisture.
He has always believed that it takes time to solve this phenomenon and needs to check and repair electronic parts one by one. In addition, he should pay careful attention to the phenomena when the fault occurs, such as water temperature and whether there is abnormal noise in the engine. Then go to a more standardized maintenance enterprise, make clear all the characteristics when the fault occurs, give the maintenance personnel first-hand information, and let the maintenance personnel narrow the scope of inspection.