Volvo fuel injectors do not inject fuel for no reason what

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 additives, which are non-corrosive and do not hurt the car. 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.

In this case, it is important to check whether there is any related fault in the engine**? For example, the position of the camshaft or crankshaft, the sensor, and in addition, check the power supply fuse of the fuel injector.

Hello, if the ignition is normal and there is no fuel injection signal, in this case, you need to check whether there is a short circuit from the signal line to the connection of the engine computer, if the line is normal, it is generally an internal fault of the computer board.

If the ignition is normal, then you need to check the wiring of the fuel injector, as well as the engine computer, if it is not ignition, it may be that there is a problem with the crankshaft position sensor.

If you seem to be in this situation, it is recommended to check whether the ignition is good, if there is fire and no oil, it is recommended to focus on checking the connection of the wiring and whether there is a problem inside the computer board.

The fuel injector of the Volvo car does not inject fuel, and if there is no signal, check whether it is caused by a problem with the line.

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Hello, this is going to synthesize the things you repair, and then check the injector line to the middle of the engine computer version is there a problem?

This is to check whether the fuse has blown out first? Check whether the line plug on the computer version is not in good contact. Check if your PC version is burning?

Hello, this problem you look at the circuit of the fuel injector to see if there is a short circuit, if there is no problem, it is estimated that there is a problem with the computer.

Hello, this is generally a problem with the computer signal or a fault with the line, you can check it.

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 the fuel used is poor, the fuel injector will become dirty and cause blockageWhen the fuel injector is dirty, the car will have the following performance:

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. There will be poor engine work.

Idle shake. Hope mine can help you.

Hello, the car is unstable and speeding up, and there is no energy.

Hello! will affect the dynamics. If you have any questions, please ask!

There may be several reasons why Volvo fuel injectors cannot be cleaned:1Injector failure:

There may be plugged cavities inside the injector or damaged parts that prevent cleaning fluid from being fed in or out of the nozzle. 2.Incorrect cleaning method:

If the cleaning method is not correct, the cleaning liquid may not flow smoothly through the injector, or the cleaning time may not be long enough to completely remove dirt and sediment from the mouth. 3.Aging wear:

If the injector has been used for a period of time, it may be worn out, resulting in the injector still not returning to normal working condition after cleaning, and the injector needs to be replaced. If you want to clean your Volvo fuel injector thoroughly, you can consider using professional cleaning equipment and strictly following the instructions for use, or simply replace the non-cleaning fuel injector to ensure that the vehicle is working properly.

Summary. Dear, glad to answer for you! Volvo excavator fuel injector does not work without electricity:

1. Fuel shortage: Under normal circumstances, when the car fuel light is on, it can run 40-50 kilometers, so many people do not go to refuel at this time, and if it is not grasped well, it will cause a serious shortage of fuel in the fuel tank, resulting in the nozzle not being able to spray oil. 2. Fuel pump damage:

Fuel pumps are lubricated by fuel cooling, and if there is a serious lack of fuel in the tank, the pump is highly susceptible to damage.

Dear, glad to answer for you! Volvo excavator fuel injector has no electricity or does not work: 1. Fuel shortage:

Under normal circumstances, the car type can run 40-50 kilometers when the fuel light is on, so many people do not refuel at this time, and if it is not grasped well, it will cause a serious shortage of fuel in the fuel tank, resulting in the nozzle can not spray oil. 2. Fuel pump damage: The fuel pump relies on fuel cooling and lubrication, and once the fuel in the fuel tank is seriously missing, the oil pump is very easy to be damaged.

Extended Information: There are also the following reasons:1

High-pressure oil pump is often pressurized by the high-pressure oil pump and then injected by the fuel injector. Once the high-pressure oil pump fails, resulting in a sharp drop in the oil pressure and service force, the fuel injection work of the fuel injector will be affected.

2.Injector blockage: Because the unsaturated olefins and gum in the fuel will produce a coke-like substance at high temperatures, that is, carbon deposits, and when the carbon deposits are seriously accumulated on the fuel injector, the fuel injector is very likely to be blocked, resulting in the fuel injection of the fuel injector being affected.

Reasons why Volvo fuel injectors are running out of power:

1. Insufficient fuel: Under normal circumstances, when the fuel light of the car is on, it can still run 40-50 kilometers, so many people will not refuel when the fuel light is on, and if it is not grasped well, it will cause a serious shortage of fuel in the fuel tank, resulting in no fuel injection nozzle.

2. Fuel pump damage: Many people still do not refuel when the fuel light is on, but the fuel pump relies on fuel cooling and lubrication, and once the fuel in the fuel tank is seriously missing, the oil pump is very easy to be damaged.

3. High-pressure oil pump failure: In order to increase the pressure of fuel injection at the fuel injector and improve the atomization effect of the fuel, the fuel will be pressurized twice by the high-pressure oil pump and then sprayed by the fuel injector. Once the high-pressure oil pump fails, causing the oil supply pressure to drop sharply, the fuel injection work of the fuel injector will be affected.

4. Fuel injector blockage: due to the unsaturated olefins and gum in the fuel at high temperatures, a coke-like substance, that is, carbon deposits, and when the carbon deposits are seriously accumulated on the fuel injector, the fuel injector is very likely to be blocked, and blind cultivation will cause the fuel injection of the fuel injector to be affected.

Hello, check the line, there may also be a problem with the computer board [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

It may be that the oil pump battery is out of order.

Summary. The reasons for excessive fuel injection from the injector may be as follows:1

Faulty injectors: Injectors can be clogged, damaged, or not working properly, resulting in injectors not being able to properly control the amount of fuel injected, resulting in excessive fuel injection. 2.

Too much pressure: Too much fuel pressure in your Volvo's fuel system can cause excessive fuel injection at the injectors. This can be due to a faulty fuel pressure regulator, a problem with the fuel pump, or a failure of other related components.

3.Fuel supply system failure: Problems in the fuel supply system, such as unstable oil supply pressure and poor fuel return, can also lead to excessive fuel injection at the fuel injector.

These are just a few of the reasons why Volvo injectors can over-inject, and may require a vehicle inspection and troubleshooting to arrive at an accurate answer.

The reasons for excessive fuel injection from the injector may be as follows:1Injector failure:

Injectors can be clogged, damaged, or not working properly, resulting in injectors not being able to properly control the amount of fuel injected, resulting in over-infusion of fuel injections. 2.The pressure is too high:

Too high a fuel pressure in a Volvo's fuel system can cause excessive fuel injection at the injectors. This can be due to a faulty fuel pressure regulator, a problem with the fuel pump, or a failure of other related components. 3.

Fuel supply system failure: Problems in the fuel supply system, such as unstable oil supply pressure and poor fuel return, can also lead to excessive fuel injection at the fuel injector. These are just a few of the reasons why Volvo injectors are overinjected, and may require a vehicle inspection and fault diagnosis to arrive at an accurate answer.

Fellow, I really didn't understand, I can be more specific.

Excessive fuel injection of fuel injector can be dug up and caused by hail scattering due to fuel injector failure, fuel pressure mold sail too high and fuel supply system failure, etc., and the specific cause needs to be inspected and troubled by vehicle inspection.

Summary. There are several possible causes of excessive fuel injection from Volvo fuel injectors. First of all, it may be that some parts inside the injector are damaged or clogged, causing the injector to not close properly or control the amount of fuel injected.

Second, the regulator of the fuel supply system may malfunction, causing the fuel to not be properly supplied to the injectors, resulting in over-injection. In addition, the vehicle's computer-controlled module (ECU) can also have problems, resulting in uncoordinated injectors and resulting in excessive fuel injection. Finally, some specific Volvo models may have design or manufacturing defects that can cause over-injection of fuel into the injectors.

It is recommended that you contact a professional technician in time to check and repair it to ensure the safety and normal operation of the vehicle.

There are several possible causes of excessive fuel injection from Volvo fuel injectors. First of all, it may be that some parts inside the injector are damaged or blocked, and the injector cannot be closed properly or the amount of fuel injected cannot be controlled due to the impulsion. Second, the regulator of the fuel supply system may malfunction, causing the fuel to not be properly supplied to the injectors, resulting in over-injection.

In addition, the vehicle's computer-controlled module (ECU) can also have problems, resulting in uncoordinated injectors and resulting in excessive fuel injection. Finally, some specific Volvo models may have design or manufacturing flaws that result in excessive vertical injection of fuel injectors. It is recommended that you contact a professional technician for inspection and repair to ensure the safety and normal operation of the vehicle.

Fellow, I really didn't understand, I can be more specific.

There are several possible reasons for excessive fuel injection in Volvo fuel injectors: 1If the spray stop is the internal parts of the grease nozzle damaged or blocked.

2.The regulating device of the fuel supply system is faulty. 3.

There is a problem with the ECU of the vehicle. 4.Some Volvo models have design or manufacturing defects.

It is recommended to contact a professional technician as soon as possible for inspection and repair to ensure the safety and normal operation of the vehicle.