How often should car fuel injectors be cleaned?

The car fuel injector is cleaned at about 230,000km, and the vehicle is in good condition and the fuel can be extended to about 460,000km. As one of the key components of the EFI engine, the fuel injector will seriously affect the performance of the engine. A clogged fuel injector can seriously affect the performance of the car.

The cause of the blockage is due to the deposit of carbon in the engine on the fuel injector or by.

When the fuel injector fails, it will lead to an increase in carbon deposition in the engine, unstable idling, increased fuel consumption, weak acceleration, difficult starting, excessive emissions, etc., and in serious cases, it will cause the fuel injector to be blocked, and then damage the engine.

The injector is a simple solenoid valve. When the solenoid coil is energized, a suction force is generated, the needle valve is sucked up, and the nozzle hole is opened. The fuel is sprayed at high speed through the annular gap between the shaft needle and the nozzle hole at the head of the needle valve, forming a mist, which is conducive to full combustion.

As one of the key components of the EFI engine, the fuel injector will seriously affect the performance of the engine.

The reason for the blockage is that the carbon deposits in the engine are deposited on the injector, or the impurities in the fuel block the injector channel, and the injector is blocked, pay attention to the following points;

First, don't coax the throttle with a big foot, especially if the fuel injector is blocked, which will cause the fuel injector to be completely damaged.

Second, the fault light is not good for a long time, and the fault light will be reported after a certain number of times, indicating that the car is not burning well before, which may be oil or oil deterioration and there is no good fuel to burn.

Third, in the case that the oil circuit is not cleaned and improved, cleaning the throttle will lead to increased air intake, thinning of the mixer, and the vehicle will shake at idle, and the throttle will be channeled.

Fourth, repairing a car does not mean that it will be good, and repairing it may aggravate problems in other places. This is normal and requires the use of elimination.

Fifth, in the case of poor combustion, shaking, and scurrying, the first thing to clean the oil circuit is, and not to rush to replace the accessories.

This is very easy to deal with, encounter such a fault code, after the detection, it has been determined that the fuel injector is blocked, then the traditional way is to disassemble the fuel injector to replace, not to mention the replacement of the labor costs, we will say the reason for this, we have to first figure out why it will be blocked, will be after the replacement, to avoid the later blockage, after all, the replacement cost is very high, you replace the plug again, is it to consume a lot of cost.

There are two types of blockage, one is the external blockage caused by ash and carbon deposits on the outside of the fuel injector in the combustion chamber, and the other is the internal blockage caused by the oil in the oil circuit. Both of these blockages can be cleaned and unblocked by PNF-based additives. But be sure to use effective additives.

Don't wait for the car to have a problem before thinking about changing the parts, the cost outweighs the loss.

Generally, 40,000 kilometers is recommended to be cleaned once

The fuel injector can generally be cleaned once every 2 years or 5 to 80,000 kilometers, depending on the quality of gasoline in the area where the vehicle is used.

There are two ways to inject fuel nozzles: one is disassembly and cleaning, and the other is disassembly and cleaning.

It is necessary to clean the engine fuel injector, the engine fuel injector is dirty, which will lead to an increase in fuel consumption of the vehicle, insufficient power, idle shake and a series of failures, I personally feel that the biggest impact is the increase in fuel consumption, after all, the current oil price is so expensive, or a little distressed. It is recommended that it is necessary to clean the fuel injector regularly, and it is also necessary to go to a large gas station to refuel. Because the quality of gasoline is not good, it is a bit more than worth the loss if the fuel injector is deposited or damaged.

There is generally no problem with the fuel injector, you just need to change a gasoline grid every time you clean the throttle body, the chance of a problem with the fuel nozzle is very small, as long as you do maintenance on time, change the gasoline grid according to the style.

Extended information: 1. Fuel spray nozzle, itself is a normally closed valve. When the solenoid coil is energized, the suction force is generated, the needle valve is sucked up, the nozzle hole is opened, and the fuel is sprayed out at high speed through the annular gap between the shaft needle and the nozzle hole at the head of the needle valve, forming a mist shape, which is conducive to full combustion.

2. The fuel injector itself is a normally closed valve (normally closed valve means that when there is no input control signal, the valve is always closed; The normally open valve is when there is no input control signal, the valve is always open), and the valve is controlled by the upward and downward movement of a valve pin.

3. When the ECU issues the fuel injection command, the voltage signal will cause the current to flow through the coil in the fuel injection nozzle, and generate a magnetic field to suck up the valve pin, so that the valve can be opened so that the oil can be sprayed out of the fuel injection hole.

4. The biggest advantage of injection fuel supply is that the control of fuel supply is very accurate, so that the engine can have a correct air-fuel ratio in any state, which not only keeps the engine running smoothly, but also its exhaust gas can meet the specifications of environmental protection regulations.

Generally, it is 20,000 kilometers to clear the throttle body, as for the fuel injector, there will generally be no problem, you just need to change a gasoline grid every time you clean the throttle body, the chance of a problem with the fuel nozzle is very small, as long as you do maintenance on time, replace the gasoline grid and style according to the inside.

However, I suggest that the car is not faulty, don't want to wash the throttle fuel injector or something, no problem, don't wash the more faults, and don't disassemble and wash, the assembly strength of the later removal is definitely not as good as the original car, and after cleaning, the valve clearance may become larger, and the fuel consumption will also increase, if you go to 4S, it is definitely recommended that you wash.

But I still said don't toss if it's okay, it's a little problem, just replace it directly, it's not expensive!

The fuel injector is generally cleaned once every 20,000 kilometers, and it can be replaced if it is broken.

Personally, it is recommended that the fuel injector can be cleaned every two to thirty thousand, and it needs to be replaced only when it is broken.

It is generally recommended to clean the throttle and fuel injector every 20,000 kilometers, and maintain some three-way catalytic converters every 460,000.

Hello, this is not a replacement cycle, just say that there is a fault and then replace, no performance failure is always used.

Hello Master! My car is six years old, the engine has a fault light, I took it to the car shop for testing, and said that the 1 cylinder is not working, and the fuel injector is blocked, I said that it is okay to clean it? The car shop said that the fuel injector cannot be cleaned now, and it is recommended to replace it. Master, is it time to replace?

Question: The complete blockage has not been reached, but the oil output is insufficient, and the carbon remover is also added in this case, but the effect is not good, and the engine fault light has been on, in this case, is it also replaced?

Ask questions! Thank you, master!

In fact, when it comes to injector cleaning, I think it is really necessary, because for me I am also engaged in car maintenance in my daily life, and for some damage to the engine after the damage of the injector nozzle, it is really very large, so some cases of fuel injector blockage are basically caused by some quality of the climate, and whether there are some impurities for gasoline, as our car owners, there is no way to know. And there is no way to avoid it at all, so adding gasoline is only able to choose the regular, but for many car owners, they have also ignored such a problem, that is, the gasoline filter, so many people are completely unaware of the existence of such an accessory, and they don't even know how much the replacement cycle of this accessory is, and there are also some car owners who have driven the car for 10 years and may not have replaced the gasoline filter.

Even for cars, it is because the gasoline filter element can not filter out some impurities, resulting in the blockage of the fuel injector, but for the maintenance plant, it is rarely recommended that the owner replace the gasoline filter, and for only those owners who understand the car, the fuel injector will be replaced, and it really takes a certain amount of time to block the fuel injector. Therefore, everyone must pay attention to the importance of such an accessory.

In fact, just like some of the cleaning time of the car fuel injector, it is also in two to forty thousand kilometers, so in the process of cleaning the fuel injector, I personally do not recommend choosing the way to clean the bottle, because for the owner does not know such a product, what is its specific effect, and even do not know whether the cleaning will improve some of the work of the fuel injector, and only know that I have spent money to buy a peace of mind, in fact, for me as a maintenance personnel, I don't know what the specific effect is, because I can't see it.

Generally speaking, it is checked and cleaned once every 30,000 kilometers, and if it is in good condition and good fuel and oil products, it can be cleaned every 4-60,000 kilometers. Even if the injector is slightly blocked, there is no need to be too nervous, because impurities can be sprayed away and dissolved by combustion when accelerating at high gear.

The best way to wash the fuel injector of the car is to wash it once in March, which can be kept clean normally, and secondly, it can also be used to reduce the wear and tear inside.

The fuel injector of the car is best to be cleaned once every six months or so, which can remove the dirt in the oil circuit and will not block the oil circuit.

There is generally no problem with the car fuel injector, as long as you change a gasoline grid every time you clean the throttle body, the chance of a problem with the fuel nozzle is very small, as long as you do maintenance on time, change the gasoline grid according to the style.

If there is no problem with the car, you don't need to wash the fuel injector or something, don't wash the more you wash the problem, and don't disassemble and wash it, the assembly strength of the later removal is definitely not as good as the original car, and after cleaning, the valve clearance may become larger, and the fuel consumption will also increase.

How often should this injector be cleaned? In general, it is better to clean the fuel injector and the fuel injector should be cleaned once every three months.

Suggestion: For car owners who love cars very much and are willing to consume, clean them once every 20,000 kilometers. For general car owners, 30,000 kilometers at a time. For good condition of the vehicle and fuel *** can be extended to 4 60,000 kilometers, it is recommended to wash it once.

The fuel injector does not need to be cleaned under no abnormal conditions, and it is recommended to clean it regularly (about 50,000 to 80,000 kilometers) so as not to affect the performance of the car.

300 yuan is expensive, almost enough to clean the oil circuit of the whole vehicle, and many 4S stores do not have this kind of cleaning equipment. Cleaning the throttle and fuel injector is the work of a small worker.

About 30,000 kilometers to clean the fuel injector, the cleaning method is: 1. Disconnect the power supply of the automobile fuel pump; 2. Connect the special tool for disassembly-free cleaning; 3. Open the valve of the special tool for disassembly-free cleaning, start the engine to keep idling, and adjust the flow switch; 4. Increase the engine speed every 2 minutes until the cleaning agent is completely exhausted; 5. Release the pressure of the no-dismantle cleaning tool system; 6. Start the engine and check whether there is any leakage in the oil circuit, and test the vehicle to ensure that it is normal.