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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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The fuel injector depends on the year, the number of cylinders, the displacement, these are not the same, ** there will be a difference, I just changed more than a thousand, in Xin Ruihao to take, very good, you can ask.
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Need to buy according to the year of the car, the number of cylinders, and the displacement, mine just changed, and I took it in Xinruihao, more than a thousand, very good, you can ask.
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The price of FH420 is not the same as FM420, and it is difficult to say the specific price, but the specific dealer. Imported cars are different from domestic cars, ** according to your configuration, such as chassis parameters, electronic systems (high-end version of the letter blind will have ACC and FCW) cab specifications and so on. Friendship sedan The new slippery fh and fm of the empty generation are at least 90W+
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Volvo 210 Excavator: Brand: Volvo, Model:
210, excavating machinery type: backhoe loader, bucket capacity, maximum excavation width: 1000 (mm), maximum excavation depth:
9600(mm):。Volvo 210 excavator **560,000 yuan.
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As of January 2020, an electric fuel injection nozzle is about 400-800 pieces.
The electric fuel injection nozzle is one of the important components of the common rail system, and the failure of the fuel injector will generally cause the vehicle to be difficult to start, and the climbing will be weak, black smoke, and serious will lead to system failure, and the light will be lit to cause the speed limit, etc., and the injection pressure is as high as 150MPa.
Usually said that the fuel nozzle is actually the injector maintenance, the need to replace the key parts, according to the type of injector is also different, the high-pressure common rail nozzle is common Bosch car, trolley, Japan DENSO, the United States Delphl, Fukang, Carter, etc., the current **general** between 400 800.
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Electric fuel injection nozzle is one of the important components of the common rail system, the failure of the injector will generally appear that the vehicle is difficult to start, climbing weakness, black smoke, serious will lead to system failure light lighting resulting in speed limit, etc., its injection pressure is as high as 150MPa, usually said that the school nozzle is actually the injector maintenance, the key parts need to be replaced, according to the type of injector, there are also differences, high-pressure common rail nozzles are common Bosch car, trolley, Japan Denso, the United States Delphl, Fukang, Carter, etc., now **generally** varies between 400 800.
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The school is a 450 school today.
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I want to find a professional school 700p fuel injector, or repair one.
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Generally, it depends on whether you can change the accessories, if you don't change the accessories, within 100 yuan. If it's broken, it's not repaired.
Bairong injector store has the original brand new **, you can learn about it.
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100 or so [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】
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The seat wrap is still very good, and the Volvo V40 has a different feeling to drive.
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There are a lot, such as knocking on the cylinder, busy black smoke, turning around, not good starting, unstable speed, holding the car. I can only say that there are a lot of ...
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If the fuel injector is broken, the vehicle cannot be driven, and the fuel injector is replaced.
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12 volts, I hope my ability to answer to help you, if you have any problems with jujube silver fruit, feel free to find me, I wish you a happy car! [Automobile pure banquet car question, ask the car master. 4S shop professional technician, 10 minutes to solve. 】