How to judge the quality of the canister solenoid valve?

When the engine is difficult to start, there is a "click" abnormal sound when the vehicle is stationary, the gasoline smell in the car becomes strong and the engine power decreases, etc., it can be judged that the solenoid valve of the carbon canister is faulty.

1. The engine is difficult to start. If the canister solenoid valve fails, the vehicle usually needs several ignitions to start, and even after starting, there is a high chance that it will stall;

2. There is a "da-da-da" abnormal sound. When the vehicle is started, if there is a rapid "da-da-da" abnormal sound, then there is a high probability that there is a problem with the canister solenoid valve, and this sound is more obvious when the vehicle is stationary;

3. The smell of gasoline in the car becomes stronger. When the vehicle turns on the air conditioner, the air conditioning outlet will emit a strong gasoline smell, which proves that there is a problem with the solenoid valve of the carbon canister.

Summary. If the solenoid valve of the activated carbon canister of the car is damaged, it will cause the activated carbon canister to be unable to open and close, which will directly lead to the aggravation of fuel consumption. First of all, we need to start with the working principle of the canister solenoid valve, which can reverse the symptoms of the damage of the canister solenoid valve, and you will find that it can be verified in reality.

Judgment method of damage to the solenoid valve of the activated carbon canister: because the solenoid valve of the activated carbon canister is working intermittently, when the hose on the solenoid valve of the carbon canister is unplugged, when waiting for the solenoid valve to work, block a part of the solenoid valve with your hand, if you can feel that the solenoid valve has been inhaling or not inhaling and does not react, this means that the solenoid valve is damaged. The normal carbon canister solenoid valve should be interstitial suction, at this time it can be judged that the solenoid valve is damaged, and it is recommended to replace it to improve the current situation.

Why does the canister solenoid valve break?

I found out that the reason why the solenoid valve of the carbon canister will be broken is that the exhaust system of the mailbox is blocked.

If the solenoid valve of the activated carbon canister of the car is damaged, it will cause the activated carbon canister to be unable to open and close, which will directly lead to the aggravation of fuel consumption. First of all, we need to start with the working principle of the canister solenoid valve, which can reverse the symptoms of the damage of the canister solenoid valve, and you will find that it can be verified in reality. How to judge the damage of the activated carbon canister solenoid valve:

Because the activated carbon canister solenoid valve works intermittently, when the hose on the solenoid valve of the carbon canister is unplugged, when waiting for the solenoid valve to work, block part of the solenoid valve with your hand, if you can feel that the solenoid valve has been inhaling or not inhaling and not responding, this means that the solenoid valve is damaged. The normal carbon canister solenoid valve should be interstitial suction, at this time it can be judged that the solenoid valve is damaged, and it is recommended to replace it to improve the current situation.

The method is as follows: 1. Start the engine, and idle operation is not good.

2. Remove the pipe connecting the fuel tank, at this time, you can feel the suction phenomenon at the joint of the carbon canister, and this suction phenomenon is intermittent, and the frequency is about two or three times a second; If there is no suction phenomenon, it means that the solenoid valve is stuck in the closed state.

3. Remove the plug of the solenoid valve of the carbon canister, if the suction phenomenon stops, it means that the solenoid valve is working normally, if it still suctions, it means that the solenoid valve is stuck in the open state.

4. Activated carbon has adsorption function, when the car runs or turns off, the gasoline vapor of the fuel tank enters the upper part of the activated carbon tank through the pipeline, and the fresh air enters the activated carbon tank from the lower part of the activated carbon canister. After the engine is turned off, the gasoline vapor is mixed with fresh air in the tank and stored in the activated carbon canister, when the engine is started, the electromagnetic valve of the fuel evaporation purification device installed between the activated carbon canister and the intake manifold is opened, and the gasoline vapor in the activated carbon canister is sucked into the intake pipe to participate in combustion.

How to judge the quality of the carbon canister solenoid valve? How to judge the quality of the carbon canister solenoid valve? Carbon canister solenoid valve to judge the good or bad method:

1. Remove the plug of the solenoid valve of the carbon canister, if the suction phenomenon stops, it means that the solenoid valve is working normally, if it still inhales, it means that the solenoid valve is stuck in the open state; 2. Roll Hecha to start the engine, idle running, and remove the pipe of the fuel tank, at this time, you can feel that there is an inhalation phenomenon at the joint of the carbon canister, the frequency is about two or three times a second, if there is no suction phenomenon, it means that the solenoid valve is stuck in the closed state. The carbon canister solenoid valve is a device installed on the car to reduce air pollution caused by fuel evaporative emissions and increase fuel efficiency at the same time. The carbon canister is responsible for collecting and storing gasoline vapor, and the carbon canister installed on the car is actually an assembly, the shell is generally made of plastic, and the inside is filled with activated carbon particles that can adsorb steam, and the top is equipped with a cleaning control valve for controlling the amount of gasoline vapor and air entering the intake manifold and a filter screen for purifying gasoline vapor.