What are the symptoms of a broken fuel injector, and the performance of a broken car fuel injector?

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.

If the fuel injector is broken, the general fault is that it is stuck, unable to open, or unable to close.

The fuel injector cannot be opened, that is to say, if the engine has a nozzle and does not inject fuel, there will be a lack of cylinder and shaking.

The fuel injector can't be closed, that is to say, the nozzle has been spraying oil, resulting in high fuel consumption, gasoline smell, spark plug is easy to drown, and it will also lack cylinder and shake.

Automobile fuel injector work poorly will cost fuel, the body shake acceleration is weak, in such a situation, it is necessary to clean the fuel injector of the vehicle, clean the fuel injector can eliminate these problems, the specific operation steps of cleaning the car fuel injector are as follows: 1. Unplug the car exhaust pipe. 2. Remove the car's air intake pipe.

3. Unscrew the fixing screws of the automobile intake branch pipe. 4. Remove the fuel injector of the car. 5. Use a special throttle cleaner to clean the fuel nozzle of the car spray.

6. Reinstall the car fuel injector again.

There are several possibilities for the car fuel injector to be broken, one is the injector circuit failure, including the coil short circuit or open circuit resulting in the ECU can not be controlled normally, and the other is the injector mechanical failure, including the fuel injector needle valve wear and tear resulting in the fuel injector leakage, or the needle valve is stuck and can not be opened normally, and there is generally no fuel injector fault code.

An injector is a solenoid valve that injects fuel into the engine cylinder, atomizing it for better combustion. The quality of the fuel injector determines the performance of the engine, the common fuel injector failure injector is blocked, the fuel injector is used for a long time or when the fuel oil used is poor, the fuel injector will become dirty and cause blockage. 1. The engine noise becomes louder, especially at low gear and low speed;

2. The throttle response is not sensitive, the acceleration is not smooth, and there will be a lag phenomenon after stepping on the throttle, and the engine speed will rise slowly when the throttle is stepped on in neutral;

3. Idle shaking, especially when starting, it is easy to shake, and there is a slight lack of cylinder in low-gear and low-speed upshifting.

Hello, generally if the fuel injector is broken, you will find that the car idles and shakes, and it will also show weak acceleration.

The symptoms of fuel injector damage mainly include no fuel injection or poor atomization effect of oil injection.

The fuel injector of the car is broken, which is manifested as the car is weak, the idle body is shaking, and there is no vibration when the hand touches the high-speed oil pipe.

The most obvious is the lack of cylinders. The spark plug has a noticeable gasoline.

The engine is faulty and black smoke is emitted from the rear exhaust pipe of the vehicle.

It is difficult to start, etc.

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.

Hello dear! Thank you for waiting, like the injector of the car is not one, if there is a problem with the injector, then there are mainly the following situations. The first situation is to damage an injector, then in this case, the engine will have a cylinder that cannot work properly, the engine will be out of cylinder, idle shaking, and there will be obvious shaking when accelerating.

The second situation is that all the injectors are broken, then the injectors cannot be injected at this time, so your vehicle will not be able to start. In the third case, the injector is not working well, but it can still inject fuel, but the amount of fuel injected is not accurate, then this situation will cause the engine power to drop and accelerate and shiver. Kiss!

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Summary. I'm sorry that it just started a little fast, if the fuel injector is blocked, it will cause the mixture to be too thin.

What are the symptoms of a broken fuel injector, and the performance of a broken car fuel injector?

Hello, I am helping you sort out the answer to your question, please wait a while What are the symptoms of a broken fuel injector, if the car fuel injector is broken, the car will shake when it starts, the engine failure light will be on, and the acceleration will be weak.

Will it cause a mixture of over-the-top wishes?

No. That's why?

I'm sorry that it just started a little fast, if the fuel injector is blocked, it will cause the mixture to be too thin.

In the past few days, my car has appeared this fault code twice, the first time is to park for an hour without igniting the fire, turn on the air conditioner, start two hundred meters after the fault code, today is walking the mountain road to climb the light, the first gear climbing feeling powerless, step on the accelerator to light up.

What exactly is the fault code?

What a car. Wuling Hongguang.

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.

The main reasons for the failure of the fuel injector are the problems of fuel and filters, such as the use of inferior diesel fuel, and the long-term use of the filter element without cleaning and replacement. It is recommended to use fuel that meets the standards and clean the fuel filter regularly to prevent excessive oil impurities from clogging the fuel injectors. It is necessary to clean the injector regularly.

The symptoms of a broken fuel injector are; 1. Black smoke from the exhaust pipe;

2. The work of each cylinder is uneven, and the engine produces obvious vibration;

3. The engine power decreases;

4. The vehicle is weak.

Blocked fuel injectors will cause the throttle to be insensitive and the acceleration will not be smooth, there will be lag after pressing the throttle, the power will decrease, the fuel consumption will also rise, and even cause the engine to shake. Usually more maintenance and cleaning, the oil impurities and gelatin are not fully burned, resulting in serious carbon deposition, the fuel injector is easy to block, effective fuel cleaner can decompose the gum and carbon deposits, dredge the fuel injector to restore the car condition.

What are the symptoms of a broken fuel injector? It is estimated that few car owners will know, so let's find out today.

First of all, let's take a look at the role of fuel injectors. As one of the key components of the EFI engine, the fuel injector itself is a solenoid valve, the principle is very simple, when the electromagnetic coil is energized, the suction 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 fog, which is conducive to full combustion.

However, after the car has been driven for a while, a certain amount of deposits will form in the fuel system. The formation of sediment is directly related to the fuel of automobiles: firstly, due to the fact that gasoline itself contains gums, impurities, or dust and impurities brought in during storage and transportation, etc., sediments similar to sludge are formed in the fuel tank and inlet pipe of automobiles over time; The second is due to the reaction of the unstable components in gasoline at a certain temperature, forming a gummy and resinous viscous.

These sticky substances are found in areas such as fuel injectors and intake valves, and when burned, the deposits become hard deposits.

So what are the symptoms of a broken fuel injector? The fuel injector is broken, resulting in the injector working ineffectively, so that the carbon deposit in the engine cylinder is serious, the cylinder barrel and piston ring are worn at an accelerated pace, resulting in unstable idling, rising fuel consumption, weak acceleration, difficult starting, excessive automobile emissions, etc., and even damage to the engine.

Therefore, it is necessary to clean the injector regularly. How often should the injector be cleaned? Generally speaking, if the car is in good condition and the oil quality is good, it can be carried out every 4-60,000 kilometers.

Even if the injector is slightly clogged, don't be too nervous, because impurities can be sprayed away and dissolved when accelerating at high gear. That's why it's recommended that car owners should often run at high speeds when driving on a daily basis to reduce the possibility of carbon deposits.

How much does it cost to clean the injector once? If you go to the 4S store, then they generally recommend that you do a full set, that is, car oil cleaning, basically using the way of hanging bottles, hanging a bottle-shaped tool above the engine, and then pouring the detergent into the bottled tool, through the catheter into the engine, to achieve the purpose of cleaning carbon deposits, **at about 1000 yuan,**for reference only. If it is an external repair shop to clean the fuel injector alone, it will be much cheaper, generally around 200-300 yuan.

A broken fuel injector will directly lead to abnormal engine phenomena. The fault symptoms of a broken engine fuel injector are: 1. Black smoke from the exhaust pipe.

2. The uneven work of each cylinder produces obvious vibration phenomenon of the engine. 3. The engine power decreases; 4. The vehicle is weak.

Extended content: In order to determine the fault of the engine injector, the engine can be idled and the oil cut off test can be performed on each cylinder in turn. When the fuel injector of a cylinder stops supplying oil, pay attention to the working condition and sound of the engine.

If the exhaust no longer emits black smoke after the oil is cut off, the engine speed changes that the fuel injector of the cylinder is faulty. After the engine injector troubleshooting judgment is accurate, the injector can be disassembled and verified on the injector calibration table.