Do-it-yourself cleaning of the throttle valve of VAZ-2110, VAZ-2111 and VAZ-2112 - instructions

Description throttle valve VAZ 2112 16 valves

Repair VAZ Description throttle valve VAZ 2112 16 valves

Online stores often suggest installing 52, 54 or 56mm instead of the standard 46mm throttle body. The product description states that an enlarged throttle body (throttle body) reduces the air flow rate and increases the air flow rate of the intake system. The effect of the installation will be especially noticeable if the system uses a zero resistance filter. It is recommended to install a throttle with a diameter of 52 mm, because The diameter of the air inlet of a standard receiver is 53mm. To install a throttle assembly of a different diameter, as a rule, nothing needs to be modified. The maximum that needs to be done is to trim the gasket a little (most often when installing a 56mm throttle body). After installation, many notice positive effects:

1. The car becomes more playful.
2. Problems with idle speed disappeared.
3. The gas pedal becomes more responsive.

There are also disadvantages:

1. Fuel consumption according to the BC increases and supposedly the readings are incorrect, the consumption has not changed.

Other owners of “ten” cars see the effect only at 16kl. engines. In fact, the picture described above may be presented somewhat differently. The positive effect that many people notice when installing a larger diameter throttle body is due to the fact that the old throttle body needed cleaning and the engine was not working properly. After installing the new remote control, the motor begins to operate normally, which was presented as a “new breath”. In other words, the car would become more playful and the pedal more responsive after basic cleaning of the remote control. In addition, after installing a remote control with a larger diameter, new problems appear in the engine operation that did not exist before. This is due to the fact that the ratio of gasoline and air is disrupted, and the ECU is unable to correct it. Instead of returning the throttle assembly to the standard diameter, many decide to replace the firmware. Many take the position that DN 52, 54 or 56mm is a useless thing, but if it is installed in conjunction with another engine tuning, the effect will definitely be noticeable. However, it is not clear whether this effect will be caused by the remote control or by other modifications to the motor. After all, even with a turbo engine the power of which is no more than 200 hp. leave standard 46mm throttle bodies, and they are quite sufficient. What reviews can you leave about the 52, 54 or 56mm throttle body?

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Refinement of the Throttle Unit on the VAZ

During the operation of VAZ cars, many points are revealed that the designers ignored. For example, the throttle assembly (TS) on some vehicle trim levels has a defect, which can cause a number of problems, such as: the engine stalls when changing gears, the engine starts poorly when the car is warm, engine vibration at idle, etc.

One of the factory’s defects is mentioned in information letter No. 32-2004-I on troubleshooting “The engine stalls at the moment of gear shifting.” A similar omission exists on engines with a metal receiver. If you think logically, then there should be a flow of air from the space in front of the remote control to the space behind it. For this purpose, it has a channel with a diameter of approximately 2.5 mm. There is a hole in the gasket between the throttle assembly and the receiver for this channel.

But the problem is that the channel abuts the wall of the receiver. It turns out that at the factory the designer of the throttle assembly provided for the leakage, and the designer of the receiver simply forgot about it. First of all, you need to remove the VAZ 2110 throttle assembly (instructions). To upgrade the throttle assembly you will need a file. Using it you need to make a 2-3mm groove in the indicated location.

As a result, this modification of the remote control eliminates some injector diseases, for example, when it is difficult to start when hot. By reducing the vacuum in the receiver, the run-out increased. That is, now you can ride 500m on the highway with zero fuel consumption, and at the same time the speed will drop by 7-10 km/h. In addition, low-end thrust has increased and engine vibrations at idle have disappeared.

Attention !

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Cleaning the throttle body

The throttle unit (DU) regulates the air supply to the engine, thereby affecting the enrichment of the fuel mixture. Remote control malfunctions can cause the engine to malfunction. In this case, the remote control is usually replaced with a new one, but most often engine problems are solved by washing the throttle assembly yourself.

To clear the remote control we need:

1. Screwdrivers;
2. Cotton buds;
3. Toothbrush (the older the bristles, the better);
4. Cleaning agent;
5. Gloves.

Total 120 rubles. Before starting work, it is better to remove the part. Removing the throttle assembly is in the VAZ 2110 service manual. If the remote control cleaning procedure has never been done, then most likely the gasket needs to be replaced.

We unscrew the two screws holding the IAC (idle air control) and remove it (the holes for its fastening are arranged in such a way that it cannot be confused with its reverse installation). Cleaning the remote control, as you may have guessed, is carried out with a cleaning agent, a toothbrush and cotton swabs. We clean all channels and hidden cavities, paying special attention to the IAC landing site and the area located next to the damper itself.

At the end of the work, the unit should be perfectly clean. Don’t forget to clean the crankcase ventilation channel. Its size is not large, so it is more convenient to blow it out together with the cleaning agent. It is convenient to blow with a foot pump, because the diameter of the hose fitting is the same as the wheel one. The last stage is replacing the remote control pipes or blowing them with compressed air. All this will extend the life of the mass air flow sensor. Assemble and install the remote control in the reverse order.

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A clean remote control made engine operation at idle more stable, engine speed no longer fluctuates. There was a clear response to the gas pedal. By the way, the throttle assembly is being modified whenever possible.

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Source: https://motorsmarine.ru/remont_vaz/opisanie_drosselnaya_zaslonka_vaz_2112_16_klapanov.html

TUNING WITH REPLACEMENT

The standard valve (throttle assembly) usually has a diameter of 46 millimeters; many fans of various tunings decide to replace this part with an alternative one:

• VAZ 2112 throttle valve 52 has a larger diameter (there are also valves of 54 and 56 millimeters)
• Is there any benefit from such tuning?
• In various online stores they often offer to replace the standard 46 mm throttle body (DU) and install 52, 54 or 56 mm
• The product description says that an enlarged throttle body (also known as the throttle body) leads to a decrease in air flow speed, which improves the performance of the air intake system
• The effect of installing an alternative damper will be clearly visible when using a zero-resistance filter in the system
• We recommend installing a unit with a diameter of 52mm, because... the diameter of its air inlet for a standard receiver is 53mm

The valve is standard (standard) on the left and new (increased flow diameter) on the right

• In order to install a remote control of a different diameter, as a rule, nothing needs to be modified
• The maximum necessary action is a small trimming of the gasket (this is most often necessary when installing a 56mm throttle assembly)

The following positive effects are noticed after such an installation:

• The car becomes more agile
• Problems with idle speed disappear
• The gas pedal also becomes more responsive.

Installation disadvantages:

• Fuel consumption increases, although many believe that the BC gives incorrect readings and consumption does not change
• Some owners see the effect exclusively on 16-valve engines

The picture we described above may appear completely different:

• All the positive effect that many people notice when installing a larger diameter remote control usually appears because the old remote control already needed cleaning and naturally the motor was not working correctly
• After installing a (clean) new remote control, the engine starts working in its normal mode, this seems like a “new breath”
• In other words, all the described effects appear after regular cleaning of the remote control.
• And besides this, after replacing the remote control, with a larger diameter you will have new problems with the operation of the motor that did not exist before
• This is due to a violation of the ratio of gasoline and air, which the ECU is no longer able to correct.
• And instead of simply returning the remote control to the standard diameter, the owners are recommended to replace the firmware, the price of which is higher, but there is no point
• There is also an opinion that a remote control with a diameter of 52, 54 or 56 millimeters is a completely useless thing, and only installed in combination with other engine tunings produces a noticeable effect
• It remains unclear whether this effect is caused by remote control or other modifications to the engine
• After all, if on a turbo engine with a power of no more than 200 horsepower, standard 46mm dampers are left and their work is quite enough

How to clean the throttle valve on a VAZ 2112 16 valves

After the car has been intensively used for several years, its throttle assembly will become dirty. In this case, it will need cleaning, as the engine will become unstable.

You can find out more about cleaning the throttle assembly on a VAZ-2112 in the video below:

Throttle valve VAZ 2112 - flushing or upgrade?

The throttle valve contains a sensor that transmits information about its opening to the electronic engine control unit. After this, the ECU regulates the supply of fuel to the combustion chambers. Many VAZ 2112 owners are thinking about increasing the power of their car by improving or replacing this engine unit. After a year or two, the car begins to behave less quickly, the idle speed disappears, and small vibrations begin to spread throughout the body.

Symptoms of a clogged mechanical regulator are immediately noticeable - the engine takes a long time to switch from high speed to idle, even when the gas pedal is suddenly released. This is most felt when you switch to neutral speed or simply coast.

This is usually followed by a smooth stop of the engine instead of the standard return to idle. There are also problems with cold starting or, conversely, an engine that is too “heated” will require turning the starter for a long time, which is fraught with consequences in its own way.

A way to find out why the CHECK light is on!

Source: https://autoprivat.ru/remont_avto/kak_pochistit_drosselnuyu_zaslonku_na_vaz_2112_16_klapanov.html

How to Clean the Throttle Valve on a VAZ 2112

Do-it-yourself cleaning of the throttle valve of VAZ-2110, VAZ-2111 and VAZ-2112. instructions

Now we will talk about the throttle assembly or the so-called throttle valve , installed on a VAZ-2110, 2111 not 2112 car. The correct operation of the engine depends on the inoperability of this unit, and since this unit is susceptible to contamination due to the ingress of oil particles, crankcase gases, dust, then the throttle assembly needs periodic cleaning .

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It is usually recommended to clean the throttle valve at least every 50 thousand kilometers, but many are inclined to think that it should be cleaned as needed, sometimes more often, and maybe even less often than the mileage indicated above.

How to understand that the throttle body needs to be cleaned

?
Yes, you simply cannot help but pay attention to this kind of problem, such as the idle speed dropping to low values ​​when you sharply release the gas pedal, to the point that the engine may stall, and if you are moving in gear, you will feel a characteristic “shake” from Because the engine will start again as if from a pusher, it will also be difficult to start the engine when it is cold, when it has cooled down, and the engine may also stall at the start. All these are clear 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 chemicals such as carb cleaner.
Problems with idle speed arise due to the fact that the bypass channel of the idle speed regulator itself becomes dirty. Many people begin to think that the idle speed sensor is to blame, they buy a new one, but the problem with idle speed is not solved. So, we will tell you with photographs how to competently carry out the procedure for cleaning the throttle valve with your own hands with minimal loss of time and without going to a service station. We carry out all work on a cooled engine so as not to get burned. Today I will talk about how to clean the throttle valve of a VAZ 2110 with your own hands with a detailed description of the entire process and informative photos. How does the on-board computer of the VAZ 2114 work where it is not installed? We need a socket wrench “13” and various screwdrivers, as well as liquid for flushing the throttle body and carburetors, sold at any car market.

VAZ 2110/2112 cleaning the throttle valve

using regular liquid, wash the damper

.

Cleaning the throttle.VAZ 2112

Help the channel develop. Group in contact.

First, remove the plastic cover from the engine by unscrewing the nuts indicated by the arrows in the photo.

Then 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 pipe hose. Pay attention to whether there is any oil or oil deposits. If there is, then there is a high probability that the forced ventilation channel in the throttle is clogged.

Then, using a screwdriver, unscrew the two hose clamps that provide heating for the emergency protection and plug them to prevent antifreeze from leaking out.

We remove the fuel tank ventilation hose, having first loosened its clamp.

Remove the throttle cable from the throttle valve and unscrew the two nuts that secure the throttle valve.

We remove the throttle assembly and start cleaning. How to tighten the steering rack on a VAZ 2110, 2112, 2111, 2114. How to independently replace the fuel filter on cars such as VAZ 2110, 2111 and 2112 with injection engines. I think there is no need to convince anyone that our throttle assembly needs cleaning

We take our carb cleaner and use it to thoroughly wash all the dirt from the throttle body, all deposits, channels, etc.

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

There should be no excessive play or wear on it. If blowing is impossible, clean all narrow channels with a thin wire.

Also pay attention to the throttle gasket. There should be no damage to it.

After thorough washing, we assemble everything in the reverse order, carefully tighten all the clamps on the connections, and then start the car. I am sure that the effect of cleaning the throttle valve will pleasantly surprise you. It is likely that gasoline consumption will decrease, the engine will gain more horsepower, and idling will become more stable than ever.

Source: https://vivauto.ru/kak-pochistit-drosselnuju-zaslonku-na-vaz-2112/

Evidence of pollution

Don't forget that the throttle valve can become dirty. Signs of this are the following criteria: the engine begins to stall, lose speed, the engine starts with difficulty, at the minimum speed of the car, jerking begins. Always check the throttle assembly for causes of problems. Damper contamination occurs in many cases. Settlement occurs on the walls of the mechanism, entering the assembly due to ventilation of gases. Another reason is poor filter performance.

We recommend:

Replacing the fuel pump VAZ 2107 - step-by-step instructions

Replacing the throttle valve Lada 2112 (VAZ 2112)

After the car has been intensively used for several years, its throttle assembly will become dirty. In this case, it will need cleaning, as the engine will become unstable.

You can find out more about cleaning the throttle assembly on a VAZ-2112 in the video below:

These include:

1. It becomes difficult for the engine to switch from high speeds to lower speeds and vice versa.
2. The engine stalls while moving with shaking and has great difficulty restoring normal speed.
3. The engine stalls at idle speed.
4. Cold starting of the engine is difficult. In order to start the engine, you need to turn it with the starter for a long time.
5. You will smell gasoline from the exhaust pipe.
6. The first few minutes after starting the engine will “triple”.

It is recommended to clean the damper every 50-60 thousand kilometers . You should also periodically perform certain preventive actions.

Causes of pollution

A mixture of dust and oil particles slowly covers the surface of the valve during operation. This is especially noticeable in places where there are air turbulences.

If you do not clean it on time, then over time the thermal gap will become overgrown with such plaque. Also, the valve stroke in the damper, which regulates the idle speed of the car, will decrease.

Cleaning the damper

This work must be done with the engine turned off. You also need to wait until it cools down to avoid burns.

Tools and materials:

1. Screwdriver Set.
2. The key is "13".
3. Rags (you can take ear cleaning sticks).
4. Pad.
5. Flushing liquid.

Step by step guide

1. Initially, you will need to remove the protection from the engine.
2. Next, you need to unscrew the plug from the expansion tank of the cooling system to reduce the pressure in it. Then you will need to loosen the clamps.
3. The next step is to remove the forced ventilation hose of the air pipe.
   This element must be visually inspected. If oil is visible in it, then most likely the forced ventilation channel in the throttle valve is clogged.
4. Next, use a screwdriver to loosen the damper heating pipes. They should also be turned off during work to prevent dust from getting inside.
5. After this, the throttle assembly itself is removed.
   It looks like this:
6. Now you need to directly clean the damper. To do this, you need to use carburetor flushing fluid and a rag. You can also use a metal knitting needle to clean the channels.

If necessary, the gasket must also be replaced.

But when it is in its normal form, there is no need to change it.

After carrying out this work, the damper should be put back in place in the reverse order of disassembly. Next, you should start the engine and check its operation .

Conclusion

As can be seen from the cleaning process described above, the work is not difficult if you approach it competently and have some skills.

3 Throttle valve upgrade for VAZ 2112

The usefulness of installing such a unit is explained by a decrease in the speed of air flow and, as a result, the efficiency of the intake air system increases. The ideal option would be to install it in pairs with a zero-resistance filter. Since the diameter of the receiver on the VAZ 2112 is 53 mm, it is first recommended to try updating the regulator to a size of 52 mm.

Installation will not be a problem, since no modifications are required from the car owner. You may need to trim the gasket if you decide to install a 56 mm unit. The following positive effects can be immediately noted:

• increasing the response speed of the accelerator pedal,
• disappearance of idle problems,
• improving the overall driving dynamics of the VAZ 2112.

Some car enthusiasts talk about an increase in fuel consumption according to the on-board computer, although in fact this is not always observed.

It seems that changes for the better arise precisely because the driver replaced his old unit with a new one of 52 mm or more. But it is possible that the old one was simply very dirty.

Often, simple flushing, as mentioned above, gives the same effect as installing a new unit, even with an increased diameter.

Source: https://avtozam.ru/vaz/zamena-drosselnoj-zaslonki-lada-2112-vaz-2112.html

Removing the throttle assembly

Dismantling the remote control will be necessary in any case. If there are malfunctions, the unit 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 13mm socket wrench. You also need to purchase a special cleaning fluid, which can be found at any car store. An excellent option would be a product for carburetors - Arbo. Dismantling is carried out only on a “cold” motor.

The work proceeds according to the following scheme:

1. Raise the hood and remove the plastic engine cover.
2. Next we need to reduce the pressure in the cooling system. To do this, you need to remove the expansion tank cap.
3. Unscrew the clamps and loosen them.

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

What is the VAZ 2110 gravity valve for?

In accordance with Euro-3 environmental standards, harmful hydrocarbon vapors from gasoline vapors should not be released into the atmosphere. To do this, the car's fuel system must be equipped with an absorber. The fuel system absorber traps these same vapors. Let's look at what it is, why it is needed in a car, and the principle of its operation.

What is an absorber

Absorption is the absorption of gases by solid or liquid bodies. In the case of an automotive system, the absorbent is the carbon with which the absorber is filled. Let's look at this device using the example of a VAZ 2110-12 car with an injection engine.

Principle of operation

Gasoline vapors generated in the tank rise upward and first enter the separator through an opening at the neck of the tank. There they condense and drain back into the tank.

That part of them that does not have time to turn into condensate, through the gravity valve through the steam line, goes directly into the absorber, where it is absorbed by activated carbon. This happens when the engine is not running.

Otherwise, while the car is moving, with the engine warm, the control system opens the solenoid valve and the absorber is purged. Gasoline vapor, together with air entering through another valve, is blown into the engine intake pipe, where it is burned.

It turns out to be a kind of double effect.

• firstly, the atmosphere is not polluted by unnecessary, harmful fumes;
• secondly, we have, albeit small, fuel savings. After all, if there were no absorber, the fuel would simply evaporate.

In a word, everything was described as an ecologist, everyone is fine, everyone is happy.

Absorber malfunction

Over time, the absorber becomes clogged and may become unusable. Signs of malfunction of this element of the fuel system can be determined by indirect signs. One of them is the formation of excess pressure in the fuel tank. This happens due to the formation of vapors that have nowhere to escape from the gas tank. In this case, when you unscrew the lid, you will hear a hissing sound.

On my VAZ 2112, as soon as I started unscrewing the tank cap, it was knocked out with such force that it’s scary to imagine. I wish I knew then that this is a problem with the absorber. And so I had to just let off steam several times a day. Also due to poor performance of the absorber, the car's idle speed may begin to “float”.

In our country, the problem of faulty parts is solved very simply, especially those without which the car can drive. Take off and move on, as the craftsmen unanimously advise. Here, of course, it’s up to you to decide, but something tells me that you and I can breathe this same air. And if everyone takes and removes all the “extra” eco-details, since they are not really needed in the car, then one “fine” day there will be nothing to breathe.

Replacing this part will take no more than 15 minutes; this can be done:

1. on one's own;
2. by contacting a car service.

Cleaning

So, the part has been removed. Now you need to assess the condition of the gasket. If cleaning is being done for the first time, 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 and hidden channels. The damper itself and the landing sites need to be given special attention.

As a result, the remote control must be completely cleaned of grease and dust. Before installation, it is worth cleaning the crankcase ventilation duct. Here you will need a foot pump. It is better to perform purging with the same product.