Filter for the throttle assembly VAZ 2110. Cleaning and flushing the throttle assembly

Today we will talk about throttle assembly or so-called throttle valve, which is installed on cars VAZ-2110, 2111 and 2112 right job engine, and since this unit is prone to contamination due to the ingress of oil particles, crankcase gases, dust, then Throttle assembly needs periodic cleaning. It is usually recommended to clean the throttle valve at least every 50 thousand kilometers, however, many are inclined to think that it should be cleaned as needed, sometimes more often, and maybe even less than the mileage indicated above.

How to understand that the throttle assembly needs to be cleaned? Yes, you simply cannot help but pay attention to such problems, such as, for example, idling sinking to low values ​​\u200b\u200bwhen the gas pedal is suddenly released, to the point that the engine may stall, and if you are moving in gear, you will feel a characteristic “shake” from The fact that the engine starts again as if from a pusher, it will also be difficult to start the engine on a cold one when it has cooled down, and the engine may also run out at the start. All of these are explicit signs of contamination of the throttle assembly and it is necessary to clean it, but not just clean it on the car, but dismantle it, partially disassemble it and clean it using special chemistry such as carbcleaner. Problems with idling arise due to the fact that the bypass channel of the idle speed controller itself is also contaminated. Many begin to think that the idle speed sensor is to blame, they buy a new one, but the idle speed problem is not solved. So, we will tell you with photos how to correctly carry out the throttle cleaning procedure with your own hands with minimal loss of time and without contacting the service station.

We carry out all work on a cooled engine so as not to get burned. We need a “13” ring spanner and various screwdrivers, as well as a liquid for flushing DZ and Carburetors, which is sold at any car market.

Shoot first plastic cover from the engine by unscrewing the nuts indicated by the arrows in the photo

Then we unscrew the plug on the expansion tank to relieve pressure in the cooling system.

Then we loosen the clamps, we marked them in the photo with red arrows.

Then remove the air hose. Pay attention to see if there is oil or oil deposits. If there is, then there is a high probability that the channel is clogged in the throttle forced ventilation.

Then, with a screwdriver, unscrew the two hose clamps that provide heating for the DZ and muffle them to prevent antifreeze from leaking out.

We throw off the fuel tank ventilation hose, after loosening its clamp.

We remove the throttle cable from the DZ and unscrew the two nuts with which the throttle valve is screwed.

We remove the throttle assembly, proceed to cleaning. I think there is no need to convince anyone that our throttle assembly needs to be cleaned.

We take our carbcleaner and carefully wash with it all the dirt from the throttle assembly, all raids, channels, etc.

We unscrew the idle speed regulator, it is held by two bolts, we wash its channel in the throttle, at the same time we check the state of the IAC itself.

It should not have excessive play or wear. If it is impossible to purge, we clean all narrow channels with a thin wire

Also pay attention to the throttle gasket. It shouldn't be damaged.

After thorough washing, we assemble everything in the reverse order, carefully tighten all the clamps on the joints, and then start the car. I'm sure that throttle body cleaning effect will pleasantly surprise you. It is likely that gas mileage will be reduced, the engine will “add” horses, and idling will become more stable than ever;)

The throttle assembly (DU) is responsible for supplying air to the engine of a VAZ 2110 car. The enrichment of the fuel mixture depends on its operation. fresh air. And if the throttle assembly is damaged, then the functioning of the power plant is disrupted. In the event of a breakdown, the remote control is replaced with a new one, but sometimes the result of a malfunction may be contamination of the assembly or a broken TPS - throttle position sensor VAZ 2110. Both cleaning and replacement can be done independently.

Useful advice: it is necessary to clean and change the gasket every 50-60 thousand kilometers. This figure is suitable for almost all VAZ models. Then repair and replacement will not be required. Cleaning at will cost only 150-200 rubles.

Location and main malfunctions of remote control and TPS

To clean or replace, we need to find the throttle assembly. In a VAZ 2110 car, it is located in the engine compartment on the throttle pipe. You can determine the malfunction of the damper by the following signs:

1. There are noticeable jerks during acceleration.
2. Increase idle speed.
3. "Check Engine" indication.
4. At neutral speed, the engine stalls.
5. Decreased dynamics.
6. "Floating" turns.

Dismantling the throttle assembly

Dismantling the remote control will be required in any case. If there are malfunctions, the assembly is replaced with a new one, but if there are no problems other than contamination, then the gasket on the damper is changed, and then a thorough cleaning is performed. For dismantling, you will need a set of screwdrivers and a socket wrench for “13”. You also need to purchase a special cleaning fluid, which can be found at any automotive store. An excellent option would be a tool for carburetors - Arbo. Dismantling is carried out only on a "cold" motor.

Work is carried out according to the following scheme:

1. Raise the hood cover and dismantle the plastic motor cover.
2. Next, we should reduce the pressure in the cooling system. To do this, you need to remove the plug expansion tank.
3. We unscrew the fastenings of the clamps, weaken them.
4. Before us there will be a forced ventilation hose of the power plant - it must be removed. Carefully inspect the air pipe for oil traces. If they are present, then most likely the forced ventilation channel is clogged, as a result, the entire unit malfunctions.
5. The next step is to remove the damper heating hoses. It is more convenient to remove them with loose clamps.
6. We turn to the dismantling of the hose responsible for the ventilation of the gas tank.
7. After unscrewing the two nuts and the cable, the process is completely finished - we remove the entire assembly.

If, during a visual inspection, deformation of the parts was noticed, then the best way out would be to replace the unit. If only cleaning is required, then proceed to the next section.

Cleaning

So the item has been removed. Now you need to evaluate the condition of the gasket. If cleaning is performed for the first time, then the gasket should be replaced. Cleaning is carried out using a pre-prepared product, cotton swabs and a toothbrush. We need to clean all cavities, hidden channels. The damper itself and the landing sites must be given special attention.

As a result, the remote control must be completely free of grease and dust. Before installation, it is worth cleaning the crankcase ventilation channel. Here you will need a foot pump. It is better to purge with the same tool.

Throttle Position Sensor Malfunctions

The cause of the defects described above may be a faulty TPS VAZ 2110. This element is necessary in order to inform the controller about the position of the damper immediately after the gas pedal changes its position. The voltage at the output of the TPS is constantly changing - this allows you to perform the correct supply and dosage of the fuel mixture.

In the event of a malfunction of the TPS, failures begin, so the information about the position of the throttle valve is incorrect. Because of this, there may be an overrun of fuel or interruptions in the operation of the power plant. Sometimes the problem is solved by cleaning the surface of the sensor itself. But if the TPS is damaged, then only a replacement will help here. The replacement process is very simple. Remove the old sensor and install a new one in its place. No additional work is required.

Video instruction

The throttle valve is an important device in a car. Most cars are equipped with this unit, the main task of which is to regulate the flow of the combustible mixture entering the engine. internal combustion. The throttle valve on the VAZ 2110, like the injector, are important building blocks responsible for supplying air and fuel to the cylinders of the internal combustion engine.

Appointment and throttle device

The throttle valve in a VAZ 2110 car is a whole assembly that is installed in the air path system. At the inlet - a pipe from the air filter, the outlet is connected to the intake manifold. The throttle is supposed to regulate the air flow that enters the engine. Due to this, the power of the motor is regulated.

The design of the throttle valve (DZ) uses a drive. It can be mechanical or electronic. The position of the throttle is directly dependent on the position of the gas pedal.

An important element in the composition of the DZ is the throttle sensor. On the VAZ 2110, it is made in the form of a potentiometer that outputs a signal. It changes depending on the throttle angle. This signal is sent to electronic system engine. The electronic control unit doses the incoming fuel.

During operation, the throttle valve assembly becomes dirty. On the side of the collector, products of combustion of fuel can settle, and on the other side - dust. The presence of contamination in the throttle valve VAZ 2110 affects the stable operation of the engine.

The main signs of contamination in the throttle body:

• weak dynamics of acceleration of the car;
• unstable operation of the engine at idle;
• the movement of the car is jerky, there is no smoothness.

DZ cleaning

Cleaning the DZ will cost much less than buying a new throttle valve on a VAZ 2110. The price of a new block is several times higher.

To clean the throttle block with your own hands, you must use the following materials and tools:

• screwdriver;
• a set of tools with keys and heads;
• new throttle block gasket;
• protective gloves;
• carburetor cleaner;
• ear sticks for hard-to-reach places;
• old toothbrush.

The procedure for cleaning the throttle valve on the VAZ 2110:

1. Raise the hood of the car. We remove the terminals from the battery. It is enough to throw off the negative terminal. To do this, use the key for 10.
2. We dismantle the receiver. We loosen the clamps on the 5 pipes. We remove the tubes. Four pipes are visible from above, the fifth is located under the throttle valve assembly.
3. Disconnect the connectors from the sensor on the throttle, the idle speed controller (IAC).
4. Disconnect the throttle control cable.
5. Unscrew the throttle block from the receiver with a key.
6. Using a screwdriver, unscrew the idle speed controller. Remove the IAC from the throttle block.
7. Using a cleaning agent, an old toothbrush and ear sticks, we clean the throttle block. We pay special attention to the channels and IAC landing sites. We remove soot and dig. Before use special means to clean carburetors, you can wash the assembly with plain gasoline.
8. It is recommended to apply grease to the idle speed control rod. For this we use silicone grease, which will help extend the life of the IAC and the throttle block as a whole.
9. We assemble the throttle assembly. We fasten it to the receiver, not forgetting to install a new gasket. We connect all pipes and connectors.

An important part of the throttle valve is the nickel. Some motorists bore the assembly chamber and install a “penny” increased in diameter. This can achieve a more enriched combustible mixture. Motor power is increased. It is better to entrust the engine tuning operation to a motor specialist. Independently, without good preparation, such an operation should not be carried out.

Another reason for the unstable behavior of an internal combustion engine can be a faulty throttle sensor. On the VAZ 2110, you can replace the sensor with your own hands. Its price is low. It is recommended to use a proximity sensor. Its cost is slightly higher, but the sensor will last much longer.

You can diagnose the sensor yourself. This requires a tester. Consider step by step:

1. The ignition must be turned on. We measure the voltage between the potentiometer contact and the "minus". The correct value on the voltmeter is 0.7 volts.
2. We turn the plastic sector to the limit, thereby opening the damper completely. The voltmeter should show 4 volts.
3. The ignition must be turned off, disconnect the connector from the sensor and measure the resistance of the DZ sensor potentiometer.
4. We smoothly turn the sector, observe the tester readings. If the sensor is working, then the arrow will move smoothly and smoothly. If not, then the throttle sensor should be replaced.

If cleaning and replacing the DZ sensor did not solve the problem of smooth running, you need to contact the minder, it may be necessary to carry out additional engine diagnostics or adjust the idle speed controller. This operation is carried out using special devices.

Gasoline is used as fuel in internal combustion engines of VAZ-2109, VAZ-2110 and other models manufactured or produced by the Volga Automobile Plant. However, in the cylinders, it does not burn on its own, but in a mixture with air. The throttle valve is needed to prepare the air-fuel mixture in necessary proportions. It is located behind the air filter in front of.

Basically, a throttle valve is an air valve that controls the amount of air that enters the engine. The principle of its operation is to change the cross section of the air channel. When it is fully open, air enters the intake manifold unhindered. To determine the opening angle, a throttle position sensor is used, which is connected to the engine control unit. Based on the signals transmitted by the sensor, the control unit gives a command to increase the amount of fuel injected, the working mixture is enriched, and the engine runs at maximum speed.

The smaller the damper opening angle, the less air enters the manifold, and the lower the engine speed.

Throttle device

The throttle valve itself is a round plate that can rotate 90 degrees around its axis (from fully closed to fully open). It is installed inside the housing, its drive, idle speed controller (IAC) and throttle position sensor are also located there. All these elements together form a throttle body or throttle assembly. It should be noted that on the VAZ-2109 with an injection engine, the VAZ-2110 and VAZ-2115, the same unit is used.

The device of the throttle body is not as simple as it might seem at first glance. Among other things, it is also part of the engine cooling system. It has channels for the circulation of coolant. It is also equipped with nozzles, one of which is connected to the engine, and the second - to the gasoline vapor recovery system.

idle speed controller

The idle speed controller is an electromechanical device whose task is to maintain a certain crankshaft speed at a fully closed throttle. For example, during engine warm-up or load changes, when the optional equipment. The idle speed controller device is as follows: inside the case there is a stepper motor, to which a spring-loaded conical needle is connected. When the motor is idling, the needle, moving back and forth, adjusts the area cross section air bypass duct through which air passes when the damper is fully closed.

The throttle valve can have two types of drive:

1. mechanical, as in cars VAZ-2109, VAZ-2110, VAZ-2114;
2. electric, which is used on most modern cars.

mechanical drive

In the VAZ-2109, VAZ-2110 and other outdated models of the Volga Automobile Plant, the throttle valve is connected to the gas pedal by means of a steel cable. The mechanical drive has a very simple device and low cost, so it is still used on many low-cost cars.

Electric

If the throttle valve is equipped electric drive, then there is no direct connection between it and the gas pedal. The principle of operation of the electric damper does not change, but its device is much more complicated. Simplified, such a node works in the following way. The force of pressing the gas pedal is registered by a special sensor, which transmits this information to the engine control unit, the throttle opening angle is determined by the throttle position sensor, and also transmits the corresponding signals to the control unit. The controller constantly compares these values ​​and instructs the electric motor to increase or decrease the damper opening angle.

Home distinctive feature the electric throttle is the lack of idle control. When the engine is idling, the throttle valve does not close completely, the angle of its opening is set by the control unit in accordance with the operating parameters power unit. The electronic throttle, unlike the mechanical one, has not one position sensor, but two. If one sensor, also known as the throttle potentiometer, fails, the throttle assembly will still work.

Throttle position sensor

This sensor is a potentiometer. When exposed to the gas pedal, the position of the damper and the voltage supplied to the controller change. In the closed state, the voltage is 0.7V, when fully open, 4V. In accordance with these data, the sensor controls the fuel supply.

If a position sensor malfunction occurs, the controller will not be able to correctly determine the position of the damper. This results in the following faults:

• in all engine operating modes, the revolutions begin to float, at idle, the revolutions will be increased;
• when you turn off the gear (neutral) while driving, the engine may stall;
• Sometimes the CHECK light may come on.

To check the performance of the position sensor, you can use a multimeter. With the ignition on, the probes are connected to connectors B and C. Changing the position of the damper should lead to a change in voltage.

Why is it necessary to upgrade the throttle valve on the VAZ-2109, 2110, 2115

Spare parts stores sell throttle assemblies with oversized dampers (52, 54 and 56 mm) for VAZ-2109, 2110 or 2115 cars. According to the sellers, by installing such a damper instead of the standard 46 mm one, the car owner will receive significant benefits: the car becomes more responsive to the gas pedal, problems with idling disappear, the dynamics of the car improve, and this is especially noticeable if you replace the regular air filter. The main argument that they are trying to inspire car owners is that the motor for effective work more air is required, for which it is necessary to replace the standard throttle assembly with an improved one. They even cite figures: the diameter of the VAZ-2109 or VAZ-2110 receiver is 53 mm, and the damper with a diameter of 46 mm supposedly "strangles" the motor.

Many owners of the VAZ-2109 and VAZ-2110 succumb to persuasion and change the standard device to an improved one. After that, indeed, the engine works better, and the car drives more dynamically. The reason for the improvements is actually much more prosaic: instead of the old, dirty throttle assembly, which has long needed a thorough cleaning, the owner put a new one. As a result, the engine returned to work in normal mode, which is perceived by the owners as the promised responsiveness and agility of the car.

We must not forget that the increased air flow leads to a violation of mixture formation, since the ECU is not able to correct the supply of gasoline. To eliminate such a problem, car owners, as a rule, “reflash” the control unit and pay as a result of the increased appetite of the car.

After several years of active operation, the throttle assembly is seriously contaminated and requires immediate cleaning, under negative impact crankcase gases, as well as small particles of oil and dust, the operation of the carburetor becomes unstable. Throttle cleaning(DZ) should be carried out every 50-60 thousand km., In addition, it is necessary to carry out preventive maintenance from time to time with mandatory partial disassembly this node.

Throttle Body Dirty Symptoms:

1. It is difficult for the engine to switch from high speed to idle when the accelerator pedal is suddenly released. For example, when you are braking or coasting in neutral. Instead of a smooth return to speed, they rapidly drop to 400-600 per minute, after which, as a rule, the engine stalls with a characteristic shaking or is restored to the required speed with great difficulty.

2. Also, an engine with a dirty throttle assembly has a difficult "cold" start, and in some severe cases, a "hot" one. Before starting such a motor, you have to turn the starter for a long time, while a characteristic smell of gasoline is heard from the exhaust. However, it is worth slightly opening the throttle valve several times by briefly pressing the gas pedal, as the engine "comes to life" and starts. As a rule, the first few minutes it "troit" a little. Perhaps the carburetor troit for another reason, about how to adjust a carburetor read .

Causes of Throttle Fouling

A mixture of air and oil, as well as microscopic dust particles that pass through the air filter from the crankcase ventilation system. When used on vehicles, this substance slowly covers all internal surfaces, especially in places where there is a strong air turbulence, that is, behind the throttle valve, as well as on the idle speed control rod. From long-term operation the thermal gap itself "overgrown" with dirt, and in the throttle valve the cross section of the bypass channel of the idle speed controller decreases.

Today I will talk about how to clean the throttle valve VAZ 2110 with your own hands from detailed description the whole process.

Throttle cleaning

This work is done on a "cold" engine to avoid burns and other troubles.

From the tool you will need:

1. End on "13".
2. Screwdriwer set.
3. DZ flushing liquid, as an option, I can recommend the time-tested carburetor cleaner - Abro, it has high efficiency and is quite inexpensive.

How to Clean a Throttle Body - Step by Step Guide

1. The first step is to remove the plastic (decorative) engine cover.

2. Then you need to unscrew the plug of the expansion tank in order to reduce the pressure in the cooling system. 3. It is necessary to loosen the clamps (see the photo they are indicated by arrows)

4. Remove the air duct forced ventilation hose. Produce visual inspection if you find traces of oil in the air pipe - most likely a thin forced ventilation channel is clogged in the throttle assembly. If so, then all crankcase gases, along with oil particles, go through a large ventilation branch.

5. Take a screwdriver and loosen the two clamps, then remove the throttle body heating hoses, for a while they can be muffled with something, for example, unusable.

6. Remove the gas tank ventilation system hose, for this you need to unscrew the clamp.

7. It remains to remove the cable and unscrew the two fixing nuts of the throttle assembly.

In the photo you see the removed throttle assembly, comments are unnecessary ...

Now directly about how to clean the throttle valve VAZ 2110

1. Take the previously prepared cleaner and wash the throttle valve properly, including all channels of the assembly. Take SPECIAL Attention to the calibrated channel of the forced ventilation of the crankcase, as a rule, is so coked that it is necessary to use a needle or a steel knitting needle to clean it.

2. Turn off two bolts and remove the regulator of idling (РХХ). Rinse its channel in the throttle body properly, pay attention to its condition, the service life of the IAC is approximately 100 thousand km. If during the check you found that the idle speed regulator rod is very dirty, wedges, has a lot of play or wear, I recommend replacing it with a new one.

3. If the gasket in the throttle assembly has a "human" appearance, there is no need to change it, but if it is damaged, replace it.

For those who like photos in the style of "before and after", I specially compared two images for greater clarity and demonstration of the work done.

Assembly is carried out in the reverse order. That's actually all throttle body cleaning, put everything back together and check the result. The result will be incredible, I can tell from personal experience that after I cleaned the throttle valve, the car seemed to have been replaced, everything changed, the operation of the engine, idle speed and sound changed so much that it seemed to me that the engine of my car was replaced, or I “smarted” something in the adjustments. While driving, an unprecedented throttle response and sensitivity came from somewhere, the engine began to gain momentum faster and “eat” fuel less. idle stabilized, in short, the result is simply stunning. I hope yours also did not go unnoticed ... Thank you for your attention, take care of yourself and your car.