If the carbon canister solenoid valve is broken, will the fault light come on?
Answer:The vehicle’s carbon canister solenoid valve is damaged and is on the dashboard The corresponding fault light will light up.
Cars and motorcycles are equipped with carbon canister solenoid valves. Its main function is to use the carbon canister to adsorb and filter the gasoline vapor in the fuel tank, and then filter the fuel through the solenoid valve. The steam air enters the engine to participate in combustion, with the purpose of making the vehicle's fuel efficiency higher, which is equivalent to reducing fuel consumption and preventing the air pressure of the fuel tank from increasing.
There is no specific replacement time for the carbon block solenoid valve. It only needs to be replaced when there is a problem with the solenoid valve. If the motor vehicle feels severe frustration while driving or has a strong gasoline smell, it is necessary to check whether the model and the carbon cylinder solenoid valve are damaged. If damaged, it needs to be replaced in time.
LearnThe working principle of the solenoid valve can help us more clearly distinguish whether the engine failure is caused by the carbon canister solenoid valve.
The solenoid valve is activated by a trip computer, and the solenoid valve opens or closes. In most cars, the canister solenoid valve remains closed when power is not applied. In this case, the vent valve collects vapors in the canister that are released by the fuel in the fuel tank. When voltage is applied to the solenoid valve, it opens and the exhaust valve releases the trapped steam into the engine. If a solenoid isn't working properly, it may not turn on or off, which can cause a number of problems.
The driving computer will only release fuel vapor when the car is driving at a constant speed, especially when driving in high gears. When the car is running at low speed or under load, the release of steam may change the air-fuel ratio to a certain extent, causing the engine to stall. When the exhaust valve is stuck in the open or closed position, steam may or may not be released at the wrong time, which may result in incorrect air-fuel ratio and one-way engine lights.
How to judge whether the carbon canister is broken:
1. The engine stalls or is difficult to start when the car is hot. The carbon canister solenoid valve is damaged and is always open. The mixture in the engine inlet is also in a rich state. Since the vehicle has just been started, the carbon canister solenoid valve has not yet been controlled and will not issue a command to reduce the fuel injection volume;< /span>
2. The car has no strength to accelerate, and the idling speed is unstable after the engine is started. If the air inlet and filter of the carbon canister are blocked, fresh air from the outside will not be able to enter the carbon canister, causing the mixture concentration to be too rich and the idle speed to become low. After a while, the mixture will be too lean and the idle speed will increase;
3. The car crashes when stepping on the accelerator to accelerate. If the pipeline in the carbon canister system leaks oil, then it is not fuel vapor but air that enters the engine inlet. After the engine's mixed gas enters the air, it will be too thin, resulting in the car crashing during acceleration.
4. If you smell a heavy smell of gasoline in the car, it may be that the pipeline in the carbon canister system is damaged. The gasoline vapor absorbed by the carbon canister is discharged through the damaged area. The occupants of the vehicle smelled of gasoline.
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