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When the fuel passes through the fuel injector, there is a gel inside the fuel injector, and there is insufficient combustion impurity carbon deposit on the outside, which makes the fuel injector too dirty.
The role of the fuel injector is to deliver the fuel precisely to the inside of the engine for combustion. A car fuel injector is a simple solenoid 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.
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.
Reasons for higher fuel consumption:
1. Poor ignition: the spark plug gap is too large, and the ignition coil energy is not enough;
2. Poor atomization of fuel injector: the fuel pressure regulator is faulty, and the fuel pressure is too high;
3. Excessive carbon deposition in the engine: part of the gasoline sprayed is absorbed by carbon deposition;
4. Sensor failure: For example, the failure of the water temperature sensor will cause the engine to be mistaken for a cold state, and will always send out a fuel injection signal, resulting in high fuel consumption;
5. Oxygen sensor failure: the fuel correction will be invalid, the computer will always send out the signal of fuel injection, and the failure of the air flow meter will cause the incorrect air intake data.
When encountering a blocked fuel injector, 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.
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No, there will only be body shaking, and there will be a lack of power.
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Long-term idle operation When the diesel engine is idle for a long time, due to the low temperature in the cylinder and the insufficient fuel combustion, carbon deposits are easy to form on the combustion chamber and fuel injector, resulting in the deterioration of the working conditions of the fuel injector. This is especially true in cold winter climates. Due to the carbon deposition in the combustion chamber, the heat dissipation is slow, and in severe cases, the nozzle hole of the fuel injector will be blocked or the oil dripping phenomenon will occur.
The fuel adheres to the head of the fuel injector for a long time and burns, and the resulting local high temperature will cause the fuel injector and the heat insulation sheath to burn. Late injection time Injection advance angle is too small will make the injection time too late, the fuel combustion situation will deteriorate, if not adjusted for a long time, the local high temperature will make the fuel injector and heat insulation sheath melt. The fuel is not clean There are small particles of impurities in the fuel, which will wear the needle valve and the needle valve body at the fuel injector, and the needle valve will be stuck in the needle valve body when it is serious.
The needle valve jam lags, and the fuel cannot be injected into the combustion chamber at the time, quantitative and rapid interval, and the phenomenon of oil dripping or injection will occur. At this time, the fuel atomization is not good, the combustion rate is reduced, and the combustion time at the fuel injector is prolonged, which eventually leads to the burning of the fuel injector and the heat insulation sheath. When this kind of failure occurs, there will be black smoke and shaking of the diesel engine.
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Hello, this situation is mainly that the gasoline grid is dirty, there are too many impurities, and the fuel will be directly blocked after the gasoline grid is pumped to the fuel injector, resulting in no fuel injection or very little injection, and the fuel injector will be broken.
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Hello, the fuel is too large or too small, the fuel oil is not good, the injector voltage is too large, short circuit, etc.
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Hello, the fuel injector is too dirty, the amount of fuel injected is too large, and the oil is not good.
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The main reason for the damage of the injector is the problem of the oil, and the particles in the oil are relatively large, which will cause the injector to be blocked, especially if there is no life.
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The working environment is too harsh (high temperature work) Generally, the fuel injector has a service life, and it should almost be broken when the time is up.
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If the fuel injector is broken, it is recommended to stop the car immediately for inspection, or find the nearest repair shop or 4S shop for repair. The car can still be driven if the fuel injector is broken, but in order to prevent the car engine from being damaged twice, it is best not to open it again.
The main reasons for the damage of the fuel injector are the blockage of the fuel injector, the broken spring of the fuel injector, and the excessive wear of the oil needle of the fuel injector. If the injector is clogged, simply clean it. If the injector is damaged due to a damaged part, you can remove it and ask a professional to check and repair it, and if necessary, you can directly replace it with a new one.
Car Injectors:
The automotive fuel injector is a solenoid valve that opens and closes to control the fuel to form a spray into the engine, which is conducive to more adequate fuel combustion. When using the car on a daily basis, it should be checked every 20,000 kilometers or so so so that the engine can work better.
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A broken car fuel injector will affect fuel consumption: 1. The quality of the fuel injector plays a fundamental role in the power of each engine. Poor fuel will lead to ineffective ineffective fuel injectors, serious carbon deposits in the cylinder, accelerated wear of cylinder barrels and piston rings, resulting in unstable idling, increased fuel consumption, weak acceleration of blind picking, difficulty in starting and excessive emissions; 2. In serious cases, it will completely block the fuel injector and damage the engine.
Therefore, it is necessary to clean the fuel injector regularly, and not cleaning the nozzle for a long time or cleaning the nozzle frequently will cause bad effects. As for the frequency of cleaning, it should be determined according to the condition of the vehicle and the quality of the fuel used at ordinary times, generally speaking, it is now recommended that the owner wash it at about 2 to 30,000 kilometers. The vehicle is in good condition and the fuel can be extended to about 4 to 60,000 kilometers; 3. The fuel injector is one of the key components of the EFI engine, and its working condition will directly affect the performance of the engine.
However, many car owners do not pay attention to the cleaning of the engine fuel injector, or think that the engine fuel injector needs to be cleaned after a long time - but they do not know that the fuel injector is blocked will seriously affect the performance of the car.
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If the fuel injector is broken, there will be symptoms of engine shaking, power loss, increased fuel consumption, increased exhaust emission pollution, and insensitive fuel injector.
1. Engine shake:
When the fuel injector of the car is damaged and the fuel injection is not smooth, the engine will have running shaking and other symptoms in the process of work.
2. Power decreases and fuel consumption increases
With the damage of the fuel injector, the fuel injection volume and fuel pressure cannot be guaranteed, which will cause the symptoms of reduced power and increased fuel consumption of the vehicle.
3. Exhaust emission pollution increases
Engine injector failures will inevitably affect the mixing and combustion of flammable gas mixtures, which in turn will lead to an increase in emissions of pollutants from the vehicle.
4. The fuel injector is not sensitive
The fuel injector is not sensitive in the work, and then the carbon deposition of the main cylinder of the automobile engine is more serious, and the cylinder liner and engine piston are damaged at an accelerated pace, resulting in idle shaking, increased fuel consumption, accelerated fatigue, difficult starting, and excessive automobile discharge, etc., and even destroys the automobile engine in a more serious way.
No, it has nothing to do with that.
The first warning, be sure to let the other party know what they are doing to make everyone unhappy. If this is the case in the future, don't punish yourself with other people's mistakes, after all, people haven't changed it for so many years, and it's not like you can help him change it after living with him for a few years, so change your mentality, don't waste time on this kind of thing.
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