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Release time: 2023.09.04

Many car owners have troubles，Why is there always a gasoline smell in the car? Of course, some people think that gasoline flavor is super good!But ... for friends who are prone to motion sickness，Gasoline flavor is simply a nightmare for ride。

There are many reasons for the flavor of gasoline in the car.

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Damage of fuel supply pipelines, gasoline filter failure;Some cars are equipped with carbon can，Long -term unchanged will also cause gasoline flavor. In addition，If a cylinder failure is not worked or burned is not sufficient，There will also be a great smell of gasoline ...

If everyone is in normal driving process，Not only found gasoline flavor，And if you encounter a loose throttle on the body, there will be a stuffy sound、Hot cars need to be twice or more to start problems，So in generalAutomotive oil and gas evaporation control systemThere is something wrong.

What is the oil and gas evaporation control system?

Oil and gas evaporation control system, simply speaking, is on the carCarbon can and solenoid valves。

Because gasoline is easy to volatilize，The gasoline steam in the fuel tank needs a suitable way to discharge，Otherwise, the more the gathering, the greater the hidden dangers。But directly discharged into the air will cause pollution and waste energy，So the oil and gas evaporation system came into being。

Another pipeline on the fuel tank, guide the oil and gas to the carbon tank,The activated carbon in the carbon can can adsorb gasoline particles and save，The remaining gases are discharged into the atmosphere through the carbon tank ventilation pores。

The other end of the carbon can is connected to the engine intake manifold，In the middle there is an open and closing of the solenoid valve control pipe，Open at a suitable seabet iomoment，Send the adsorbed oil and gas into the engine to burn it，This does not pollute the environment and save energy。

Four major problems and solutions

After knowing the principle, you can analyze the cause of the fault! Except for gasoline flavor，There are three other phenomena that often appear，We take stock one by one:

1. There is gasoline flavor in the car

By understanding the structure of the oil and gas evaporation control system，We know that carbon can is one of the important compositions。

Weaken due to the adsorption effect of carbon can，Can't fully absorb gasoline in the steam，Gas caused by carbon can gas contains gasoline，and some model carbon cans are located near the air conditioner filter in the engine compartment，In normal driving, the oil gas is inhaled by the engine，Rarely out。

When loosen the throttle，Negative pressure disappear，Steam will be relieved from the carbon jar vent.。This will cause some models to smell the flavor of gasoline when the inner cycle is turned on。

Solution: Replace carbon can.

2. Open the fuel tank when opening the fuel tank when refueling will inhale or exhaust

Due to the blockage of the carbon tank ventilation holes，The oil pump continues to pump oil when the vehicle is normal when driving normally，Causes a negative pressure in the fuel tank，But the ventilators cannot quickly supplement the air to adjust the negative pressure and cause the fuel tank to be flattened。

Stop working when the oil pump is stopped when loosen the throttle，Negative pressure disappear，The fuel tank will make a stuffy sound。This situation can even damage the oil pump if the fuel tank is high under extreme conditions。

After the car is parked for a long time at high temperature，Oil and gas cannot be discharged out due to the blockage of the ventilation pores，So steam gathers in the fuel tank，Open the fuel tank cap will exhaust outward。

Solution: In the case of this situation, check the bottom of the carbon tank bottom ventilation pores，Under normal circumstances, dredging the ventilation can solve the problem，No need to change。

3. The engine requires two or more ignition during hot cars to start

This is due to the failure of the solenoid valve failure.，The mixture of entering the cylinder when starting is too strong and cannot be ignited。Cold car does not have this phenomenon。

Solution: Replace the solenoid valve.

4. Instant idle speed

The limited condition is "small range", becauseThere are many reasons for the unstable of the engine idle，In some cases, the degree of idleness is very large，The speed table pointer fluctuates a lot。But the less failure speed of the failure here is caused by the failure of the solenoid valve。

Because the oil and gas in the carbon can enter the engine, it is not oxygen sensor，So when the solenoid valve failure is often opened, but the computer has not controlled the opening of the solenoid valve，The amount of fuel injection given by the driving computer is the concentration of the unparalleled carbon jar。

The solenoid valve is often opened and the mixed gas is too strong，Speed speed will rise，The computer will reduce the amount of fuel injection when the computer detects the rising speed，But the lower value is calculated in the case of the default solenoid valve closure，It will definitely cause too low fuel injection，idle speed immediately came down，Computers are constantly dead cycle，Reduced increase and then decreases and increases, causing unstable idle。

Solution: Replace the solenoid valve.

What should I do if I suddenly smell the smell of gasoline in the car?

Someone said，I understand the truth，But I still do n’t know what to do when I encountered the situation? Don't worry，To deal with the smell of gasoline suddenly appeared in the car，A total of two steps:

1. Park on the roadside, don't panic.

2. Get off the car to find the source of gasoline flavor.

First of all through the preliminary identification of odor, if it is justPure gasoline flavor,SoThe possibility of fire is not very high;If it is whereMixed with pungent rubber flavor,There may be signs of fire，It's really a fire to get out of fire，andDial the fire police phone.

If there is no mixed taste, open the hood and check the specific inspection，At this time, pay attention to ensure personal safety。

So say，Friends of motion sickness, don't be afraid，Destroy gasoline flavor is not a dream。(The content of the article comes from the Internet，If you involve the copyright, please contact delete)

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