What happens when the injector is dirty

A dirty fuel injector in a car can cause the vehicle to shake.

Engine throttle.

Excessive dirt or excessive carbon accumulation in the fuel injector can cause the vehicle to shake. Because when carbon is deposited at the injector.

Too much when the car is in a cold start.

, the gasoline emitted by the fuel injector will be absorbed by a large amount of carbon deposits, which will cause the mixture of the vehicle to be too thin in the cold start, causing the vehicle to start difficult.

After the car, the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the vacuum suction of the engine for combustion, so that the mixture becomes thicker, and the combustible mixture of the engine is dilute and sometimes thick, causing the vehicle to idle and shake. Then the solution is to clean the oil circuit and check whether the idle motor has carbon deposits that should be cleaned.

In particular, a clogged fuel injector can seriously affect the performance of the car. The cause of the blockage is due to the internal volume of the engine.

Carbon is deposited on the injector or is blocked by impurities in the fuel. After the car has been driven for a while, a certain amount of deposits form in the fuel system.

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.

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 nozzles are exactly the same in each cylinder, it will not matter, but it is often inconsistent. This results in inconsistent injection from cylinder to cylinder.

Many electronic control systems cannot distinguish the unevenness of each cylinder, so the air-fuel ratio of each cylinder is quite different if it is dirty, and the closed-loop control cannot perfectly adjust the unevenness. Therefore, in severe cases, it will lead to an increase in the misfire rate, engine shaking, and a decrease in power.

Unstable idling, vomiting, engine weakness, etc.

The engine burns badly, and the oil supply is insufficient!

If the fuel injector is broken, the fuel injector can not work normally, the engine symptoms are serious carbon deposits in the cylinder, and the cylinder barrel and piston ring are worn at an accelerated pace, resulting in unstable idling, rising fuel consumption, weak speed, difficulty in starting, excessive car emissions, etc., and even damage to the engine.

The fuel injector, one of the key components of the EFI engine, determines the performance of the engine. The fuel injector itself is a solenoid valve, its principle is that when the solenoid 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 mist shape, which is conducive to full combustion.

It is necessary to clean the fuel injector regularly, generally speaking, if the car is in good condition and the oil quality is good, it can be done every 4-60,000 kilometers. Even if the injector is slightly blocked, don't tighten the tension too tightly. Because when accelerating at high ends, impurities can be sprayed away and dissolved.

This is the reason why it is recommended that car owners should often run at high speeds when driving daily, so as to reduce the possibility of carbon deposits. (Photo by Wu Binbin, Pacific Automobile Network).

Regarding the "fuel injector broken engine symptoms", we will provide you with the following disadvantages:

If the fuel injector is broken, the engine will have symptoms such as abnormal shaking, lack of cylinder, black smoke from the exhaust pipe, and weak acceleration, which will seriously affect the performance of the car.

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 a car's fuel injector fails, we can do the following:

1. Clean with professional cleaning agent for automobile fuel injectors:

As long as you add a professional car fuel injector cleaner and let the engine idle for more than ten minutes, the sludge and other impurities in the fuel injector will be effectively cleaned.

2. Take out the fuel injector and clean it

Same as above, although it is more troublesome to take out the injector and clean it, it is more thorough.

3. Replace the fuel injector:

Replace the fuel injector directly with a new one, which is simple and hassle-free.

If the injector is broken, the engine will have symptoms such as abnormal shaking, lack of cylinder, black smoke from the exhaust pipe, and poor acceleration, which will seriously affect the performance of the car. Car Injector: The car injector is a solenoid valve that controls fuel injection into the engine through a switch, which is conducive to more adequate fuel combustion.

When the injector of the car fails, we can pick.

If the injector is broken, the engine will have symptoms such as abnormal shaking, lack of cylinder, black smoke from the exhaust pipe, and poor acceleration, which will seriously affect the performance of the car.

Car Injectors:

The car injector is a solenoid valve that controls fuel injection into the engine through a switch, which is conducive to more adequate fuel combustion.

When a car's injectors fail, here's what we can do:

1.Clean your car fuel nozzles with a professional cleaner:

The most common form of fuel nozzle failure is clogging. As long as the professional cleaning agent of automobile fuel nozzle is added, the engine will idle for ten minutes, and the oil sludge and other impurities in the fuel nozzle can be effectively cleaned.

2.Take out the injector and clean it:

Same as above, removing the nozzle for cleaning is a little more troublesome, but it is more thorough.

3.Replace the injector:

Direct injector replacement is simple and convenient.

What to do if the injector fails.

If the injector fails, it should be replaced with a new one. Injector failure cannot be repaired and will affect the normal operation of the engine. Therefore, the injector should be repaired immediately after it fails, otherwise it will affect its normal use.

The injector belongs to the engine's fuel supply system and is responsible for injecting gasoline.

There are three types of fuel injection in automobile engines, namely multi-point injection, in-cylinder direct injection, and hybrid injection.

The injectors of multi-point injection engines are in the intake manifold, and the in-cylinder direct injection injectors are on the cylinder head.

Engine injectors with direct injection technology inject gasoline directly into the combustion chamber.

Hybrid engines have both in-cylinder direct injection and multi-point injection. This kind of engine can choose different fuel injection methods under different working conditions to improve the efficiency and power of the engine.

The gas of the air multi-point injection engine is mixed with gasoline at the air intake, while the air of the direct injection engine is mixed with gasoline in the combustion chamber.

Common faults in injectors are carbon deposits, blockages, and oil leaks.

After the above situation occurs, it is enough to directly replace the original nozzle with a new one.

When you usually use the car, you must add a little more gasoline to the car, and you must replace the gasoline filter regularly.

If you don't replace the gasoline filter for a long time, it is easy to damage the injector.

Fuel injector broken engine symptoms @2019

The most obvious manifestation of a dirty fuel injector nozzle:

1. The engine noise becomes louder, especially in low gear and below 2500 rpm (no matter how high it is, it may be because the OO engine is noisy at high speed).

2. The throttle response is not sensitive, the acceleration is not smooth (compared with the new car), the imitation door of the oil is lagging phenomenon, and the tachometer pointer feels slow when the neutral gear is rushing to the oil.

3. Small-range jitter at idling.

4. It is easy to shake at the start and is not easy to control and eliminate, and there is a slight lack of cylinder in the 12-speed low-speed upshift.

Among them, if the idle motor and throttle are still not completely eliminated after cleaning, it is estimated that the 8 achievements are dirty fuel injectors, which is also a common fault unique to China, the oil is too poor, although some city gasoline has been directly added to clean the additives of the fuel injector, but the feeling effect is not very obvious, and long-term use does not know if there is ***.