What are the symptoms of throttle leakage?

Air leakage from the throttle will cause engine idling instability, poor operation, insufficient power and occasional flameout after parking. Water leakage will blacken the hood. Throttle air leakage is usually caused by air leakage between throttle seat and intake pipe interface seat, which is usually fixed with screws and clamps. Improper installation is easy to cause air leakage. Usually, after removing the cleaning throttle, be careful when putting it back, otherwise it will easily lead to air leakage. Now all cars use electronic throttles, just like the throat of an engine. The throttle controls the intake of the engine. The accelerator pedal does not directly control the fuel injection, but controls the accelerator opening. When the accelerator pedal is depressed, the throttle opening becomes larger. At this time, more air enters the engine. The sensor detects that more air enters the engine and then injects more fuel. Using the throttle for a long time is easy to deposit carbon, so many car owners will remove the throttle to clean up the carbon deposit every once in a while. Some irresponsible maintenance personnel are not careful when installing the throttle valve, which can easily lead to air leakage. It is recommended that riders go to professional institutions or 4s shops for daily maintenance, not roadside shops.