Every winter, Tiger takes over the two "faults" that are the most: high fuel consumption and battery power loss.
Recently, there are many car owners in the background of Tiger, to ask about various winter unique faults, the most of which is to feel that the fuel consumption of 100 kilometers in winter has soared by 2-3L. Running to the auto repair shop to ask, most of them were "diagnosed" that the carbon canister was broken, so that the owner could spend hundreds of dollars to replace the carbon can be repaired.
So the question is, does the sudden increase in fuel consumption really need to change the carbon tank?
Today we will talk about this topic!
Carbon tanks are not so fragile
Normal refueling jump gun will not hurt the car
In the mouths of many online "auto science" bloggers and various media car critics, there is a highly unified statement: often filling up with oil is the main cause of damage to the car's carbon canister. Therefore, it is recommended that all car owners do not fill the oil too much when refueling.
Here, Tiger first told everyone the conclusion: the carbon canister is not so fragile!
1, only long-term refueling to overflow, will soak the carbon canister.
2. Once the carbon tank is damaged, the engine will turn on the fault light, and there is a gasoline smell in the car.
As long as the owner usually refuels to jump the gun, there is basically no such thing as a carbon can be damaged by refueling.
Because the fuel tank has already considered the problem of overfilling when designing, and the "fuel dispenser jump gun" is only added to the design limit of the fuel tank in terms of the actual volume of the fuel tank.
If the owner of the car sits still for half a minute to defoam, you will find that you can slowly add about 2-3L to the fuel.
unbelief? Let's take a "ancient" vehicle fuel tank calibration table.
Well, now that we know that the tank is full and doesn't actually get too full, how did our carbon tank end up? Next, we start with the working principle of carbon tanks and talk to you about why carbon tanks are not easy to break!
The so-called carbon tank is not a "filter"
The main job is not to waste volatile oil and gas in the tank
As we all know, gasoline is a highly volatile substance.
In layman's terms, it is very easy to vaporize. Everyone knows that in the past, when there was no oil and gas recovery device at the gas station, the "aromatic gasoline smell" could be asked before the gas station door. There is also a little "drip" when we usually refuel and pull out the gun, and these dripping gasoline just dripped on the ground and disappeared within a few seconds.
It is a phenomenon caused by the characteristics of gasoline being volatile.
Similarly, gasoline in the tank can have volatilization problems.
Where does the constant volatilization of gasoline in the tank go? Automakers certainly won't let him vent into the atmosphere in vain, and naturally need a device that can recover and make full use of oil vapor – a carbon canister.
The main body of the carbon tank is a plastic box filled with activated carbon, using the adsorption effect of activated carbon to absorb the gasoline vapor in the tank, and suck this part of the gasoline steam into the engine to participate in combustion when the engine is working.
As for the specific working principle of the carbon tank, Tai Ge is not forced to nag here, and directly throws a picture to everyone.
The principle is quite simple!
Therefore, the logic and equipment of the carbon tank system are very simple.
Fill activated carbon tank + ECU controlled solenoid valve = Fuel gas recovery system (carbon tank system)
You say such a simple system, you say how good luck and strength it must be to break it
Carbon tanks are basically not bad
The solenoid valve that controls the ventilation of the carbon tank is prone to breakage
Knowing the principle mentioned above, everyone knows why Tiger said at the beginning that filling up the oil will not spoil the carbon tank!
Because in addition to long-term refueling and overflow, so that the carbon tank is soaked in gasoline every day, there is basically no external cause that can be damaged by normal use of mechanical accessories. And to say that the only easy to break in this system is only one electronic component - the carbon can solenoid valve.
The carbon tank solenoid valve is actually a simple electronic control valve, which is used to control the suction, exhalation and balance of the tank vapor pressure.
As the only electronic device in the whole system, if it is damaged, there will be no major problems, nothing more than two situations:
Valve always open = surge in fuel consumption + good power response
Valve always closed = strong gasoline smell in the car + positive pressure of the tank appears "fart or inhalation sound"
And the solenoid valve is really broken, the driving computer will also light up the fault alarm for the first time! So if the carbon tank system is really broken, the owner will definitely know that it needs to be repaired, don't look at what the Internet says that adding more oil will spoil the carbon tank Barabala a bunch of blows. Zheng'er eight repair car, no matter whether the carbon canister is broken or not, the power-on diagnostic instrument will know where the problem is when it is read
And the new car almost does not have to consider the carbon tank problem within 5 years, because the fuel recovery of this carbon tank system, the only fault point is - the solenoid valve. (A field of carbon tank water is not counted ha ~)
Tiger's side has made some incomplete inventory of the models it has encountered that are particularly easy to break
BMW F Series 45, 46, 55, 56
Volkswagen EA113 1.6NA
Ford 204PT 2.0T
Ford CAF479 1.5T
Universal ecotec 1.8NA
Universal L3G 1.5NA
PSA 1.6T HP
MB M282 1.3T
Putting aside the electronic fault, there is only the plastic aging problem cracking this, this thing is the only thing that will not light up the fault light will also lead to a surge in fuel consumption, the only thing that can be solved is that the owners of the owners let the technicians check diligently when they are regularly maintained, pay more attention to details, basically you can prevent problems before they occur.
As for the old masters usually use the car, normal use on the line, do not listen to the wind outside is the rain, the car problem is mainly the problem of the depot, the owner as long as the normal use of normal maintenance, will not be so easy to break!
Welcome to discuss with Tiger in the comment area.
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