The engine fault light is on, do you need to replace the canister solenoid valve?

Canister solenoid valve.

The main function of the carbon canister is to adsorb the gasoline vapor inside the filter fuel tank, and let the fuel vapor enter the engine to participate in combustion through the solenoid valve control, so as to reduce fuel consumption and prevent the fuel tank pressure from being too high.

Symptoms of a broken canister solenoid valve:

1. Abnormal noise of vehicle driving, fault phenomenon: in the case of non-idle operation of the engine, that is, when the engine is running at a speed of more than 800 rpm, sometimes you can hear the sound of "da-da". In this case, the first thing to do is to find the position of the carbon canister solenoid valve, and judge whether the "da-da" sound is from it, if it is from it, then leave it alone, because the carbon canister solenoid valve will produce intermittent switching action when working, so as to make such a "da-da" sound, which is a normal phenomenon.

2. Step on the accelerator and the smell of gasoline in the car is large. Fault phenomenon: when stepping on the accelerator to accelerate, the smell of gasoline in the car is relatively large.

At this time, it is necessary to pay special attention to whether the pipeline of the canister system is broken, if the pipeline is ruptured, the gasoline vapor will be discharged directly into the atmosphere along the crack, resulting in the phenomenon of gasoline in the car. If the pipeline leaks oil at this time, it will cause air to enter the engine intake instead of fuel vapor, which will inevitably cause the mixed gas of the engine to be too thin, resulting in the phenomenon of irregular azole vehicles.

Reasons for reference only: 1. The sensor is damaged, the contact is poor, or the signal is interrupted; 2. Poor engine maintenance; 3. The quality of fuel and oil is not good; 4. The combustion of the mixture is insufficient; 5. Spark plug failure, ignition coil failure; 6. The fuel pump is faulty and the oil circuit is blocked; 7. The air conditioner filter is blocked.

The specific situation is analyzed as follows; 1. Sensor problems; The sensors mentioned here include water temperature, crankshaft position, air flow, intake air temperature, oxygen sensor, etc., when these sensors are damaged, poor contact or signal interruption, the ECU of the car can not accurately obtain the engine data, at this time it will cause the engine fault light to turn on. 2. Maintenance problems; Poor engine maintenance is the most common cause of engine failure to light up. We know that the vehicle has a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light to care about your car 3, oil quality problems; The oil quality here includes fuel and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will generally recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame.

Poor combustion of the mixture; The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by the problem of engine carbon deposition or knocking, and these will eventually be detected by the engine's oxygen sensor and reported to the ECU, which will naturally turn on the fault light to warn of the intake air intake problem; When the engine burns, it needs to take intake, the air filter element is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine failure light to turn on. pressurization issues; Intake booster lines and turbochargers can also cause engine failure lights to illuminate.

The most common of these is turbocharger damage, and at the same time, the vehicle will also have oil leakage, large oil consumption, and power loss.

There are many problems that can cause the engine failure light to come on, and this needs to be investigated before making a decision. If this kind of engine fault light is on, the engine control computer will definitely record the fault and explain what is the reason for the fault light. You need to go to a repair shop or a 4S shop to check the fault code of the engine with the equipment, and solve the problem according to the fault record.

This solves the problem at its root.

There are many reasons that will turn on the engine fault light, such as dirty throttle, too low or too high fuel pressure, too thick mixture, damaged air flow meter, engine timing, need to use a special computer to diagnose, read the fault code, and operate according to the guidelines.

It is necessary to read out the fault before determining whether it is the cause of the solenoid valve. It cannot be replaced blindly.

First of all, there will be abnormal noise when the vehicle is driving, and the engine speed is more than 800 rpm, and the sound of "da-da" is heard. Rely on hearing to judge whether the "da-da" sound is from the solenoid valve of the canister, if it is, don't care about it, it is a normal phenomenon.

When stepping on the accelerator to accelerate, the smell of gasoline in the car becomes larger, you need to pay attention to whether the solenoid valve of the carbon canister has been ruptured.

Hello, the failure of the canister solenoid valve will cause abnormal emissions, and after the failure of the canister solenoid valve of most models, the dashboard will light up the engine fault light.

Hope it helps!

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 times to ignite before it can be started, and even after starting, it is very flushable and the stove can be turned off;

2. There is a "da-da-da" abnormal sound. When the vehicle is started after the dispersion, if there is a rapid "da-da-da" abnormal sound, then there is a high probability that there is a problem with the solenoid valve of the carbon canister, 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. Hello, Car Master Mechanic is here to serve you. Attentive, careful, attentive, for you to answer the car fault problems, for you to find the corresponding problem solutions and maintenance methods.

We will provide you with a satisfactory answer to your questions, I hope this service can help you, if it is helpful to you, I look forward to your praise and attention. I wish you good luck and good luck in the Year of the Tiger, Hello, friend, after your car replaced the solenoid valve of this canister, the engine fault light turned on again, in this case, it is the problem caused by the failure of the solenoid valve of this canister or activated carbon canister. If you replace it, you need to replace this activated carbon canister, or you send me this fault**, I will look at the specific cause of the failure, and then give you an answer, what is the reason for this fault light to light up friends?

Please shoot the fault **, thank you.

The car has changed the carbon canister solenoid valve, and the engine fault light is on again, what happened?

Hello, I'm helping you sort out the answers to your questions, please wait a while Hello, the car master exclusive mechanic is here to serve you. Attentive, careful, attentive, for you to answer the car fault problems, for you to find the corresponding problem solutions and maintenance methods. We will provide you with a satisfactory answer to your questions, I hope this service can help you, if it is helpful to you, I look forward to your praise and attention.

I wish you good luck and good luck in the Year of the Tiger, Hello, friend, after your car replaced the solenoid valve of this canister, the engine fault light turned on again, in this case, it is the problem caused by the failure of the solenoid valve of this canister or activated carbon canister. If you replace it, you need to replace this activated carbon canister, or you send me this fault**, I will look at the specific cause of the failure, and then give you an answer, what is the reason for this fault light to light up friends? Please shoot the fault **, thank you.

1.If the solenoid valve of the canister is broken, it will cost a lot of oil.

2.If the solenoid valve of the canister is broken, the car will leak oil, and the gasoline vapor will evaporate into the cylinder before ignition begins, resulting in a high concentration of combustible mixture in the engine. In severe cases, the ignition of the car may fail, and the fuel consumption of the car will also increase.

3.Because the mixture in the engine is too thick, the fuel combustion in the engine will not be sufficient, and the car's trip computer will make corresponding corrections. The next time you start the car, the mixture in the engine will be too thin, which will also lead to increased fuel consumption.

4.When the vehicle is driving in a non-idling state, the car makes a clicking sound, indicating that the electronic valve of the car's carbon canister is damaged. This is because the solenoid valve of the carbon canister produces intermittent working sounds, and the car will be unable to refuel when accelerating, and sometimes there will be a frustration, which is caused by the damage of the electronic valve of the carbon canister.

5.Therefore, the damage of the electronic valve of the carbon canister will not only increase the fuel consumption of the car, but also affect the normal operation of the engine. No matter which part of the car is damaged, as long as it affects the performance of the car, it must be repaired in time.

Summary. Hello, the car with a broken canister solenoid valve will have the following faults: 1. The engine is difficult to fire, and it is easy to turn off, often to ignite twice, and it is easy to extinguish again after ignition; 2. There will be abnormal noise when the vehicle is driving, which is mainly manifested in the non-idle situation, and sometimes the sound of "da-da" can be heard; 3. Fuel consumption is increased, and the smell of gasoline in the car is large; 4. The engine idle speed fluctuates high and low, and the acceleration is weak.

What fault code will occur in the car if the carbon canister solenoid valve is broken.

Hello, the car with a broken canister solenoid valve will have the following faults: 1. The engine is difficult to fire, and it is easy to turn off, often to ignite twice, and it is easy to extinguish again after ignition; 2. There will be abnormal noise when the vehicle is driving, which is mainly manifested in the non-idle situation, and sometimes the sound of "da-da" can be heard; 3. Fuel consumption is increased, and the smell of gasoline in the car is large; 4. The engine idle speed fluctuates high and low, and the acceleration is weak. I hope it can help you, remember to help me like it, thank you.

What kind of fault code.

Hello, the first report P0444 and P0445 fault**, the canister solenoid valve is short-circuited or open-circuited. Second, it is also possible to report that the P2188 and P2191 idle mixture is too dense and the high-load mixture is too thin.

What a pattern. Hello, the canister solenoid valve will turn on the engine fault light if it is broken, it is a yellow engine.

If the vehicle's canister solenoid valve is damaged, the corresponding fault light on the dashboard will be lit.

Cars and motorcycles are equipped with carbon canister solenoid valve, its main function is to use the carbon canister to adsorb and filter the gasoline vapor in the fuel tank, and then through the solenoid valve to the air of the fuel vapor, so that the engine participates in combustion, the purpose is to make the fuel efficiency of the vehicle higher, which is equivalent to reducing fuel consumption, and the air pressure of the fuel tank is avoided from rising.

How to tell if a carbon canister is broken:

1. It is more difficult for the engine to stall or start when the car is hot. The carbon canister solenoid valve is damaged and has been in the open state, and the mixture in the engine intake is also in a thickened state.

2. The car has no strength to accelerate, and the idle speed is unstable after the engine starts. If the air inlet and filter screen of the canister are blocked, then the fresh air outside has no way to enter the canister, resulting in the concentration of the mixture being too concentrated, the idle speed will become low, and the idle speed will increase after a while when the mixture is too thin;

3. When stepping on the accelerator to accelerate, the phenomenon of squeezing the car occurs. If the pipes in the canister system leak oil, it is not the fuel vapor but the air that enters the engine intake, and the mixed gas of the engine will be too dilute after entering the air, resulting in the phenomenon of the car when accelerating.

4. The smell of gasoline in the car is heavier, which may be due to the damage of the pipeline in the carbon canister system, and the gasoline vapor adsorbed by the carbon canister is discharged through the damaged place, causing the people in the car to smell the gasoline smell.

Car Master. Ask me a car question individually.

The working principle of the canister solenoid valve is to control the purification function of the canister through the modulation of the electrical pulse width. According to the different working conditions of the engine, the grounding circuit of the solenoid valve is turned on or off by the ECU computer at a certain frequency, and the vacuum degree of the carbon canister is controlled by the ECU computer through the operation of the normally closed solenoid valve.

Since the activated carbon tank solenoid valve works intermittently, under normal circumstances, the activated carbon tank solenoid valve should work intermittently. After unplugging the hose on the solenoid valve of the activated carbon canister, wait for the solenoid valve to work, and block part of the solenoid valve with your hands. If you can feel that the solenoid valve is inhaling or not inhaling, it means that the solenoid valve is damaged.

Ask if the engine fault light is on.

The question I was made of an engine failure light on.

They said it was a broken canister solenoid valve.

Summary. When the engine is just on fire, the canister solenoid valve is in a closed state waiting for you, for example, after you have been idling in place for a long time, his canister solenoid valve will open by itself and be in an open state, but it is not always open It is beating. It's just to turn it on and off, turn it on and off it.

Hello, happy to answer your questions.

When the engine is just on fire, the solenoid valve of the carbon canister is in a closed state waiting for you, for example, after you have been idling in place for a long time, the solenoid valve of his carbon canister will open by itself, in an open state, but it is not always open It is the beating of the nara. It's just to turn it on and off, turn it on and off it.

The solenoid valve of the engine canister can be opened all the time.

Is there a problem with it left on all the time?

No, no, the solenoid valve is always open, which will cause the mixture to be thick or the mixture to be thin will cause the engine to be weak. A fault will then be reported on the engine gauge.

If you keep driving it, it will definitely not work, he will report a malfunction, and the engine is not powerful enough and shaking.

Is there a problem that it can't be opened all the time when it's broken?

It doesn't turn on all the time, and it doesn't have much effect on the power of your withered engine, but the pressure in your fuel tank will not increase. In short, if this thing is broken, it will have to be replaced, and if it is not replaced, it will have an impact on the car. Oh.