How to properly clean the electronic throttle of a VAZ 2114

During the operation of the vehicle, its components and assemblies are subject to contamination. Accumulated dust and dirt prevents the proper functioning of critical parts of the vehicle's systems, which in turn affects the vehicle's productivity.

The electronic throttle valve on the VAZ-2114 is, according to experts, one of the most polluted mechanisms in a car. Therefore, the remote control must be given close attention and periodically maintained. Otherwise, the driver will experience excess gasoline consumption by the vehicle, instability of the engine, and many other troubles.

Does it make sense to install a 54mm throttle body?

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 the 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:

REMOVAL OF THE UNIT

The purpose of the throttle assembly (abbreviated as DU) is to regulate the air supply to the engine cylinders. Thus, it controls the enrichment or leanness of the fuel mixture.

The appearance of remote control malfunctions causes improper operation (interruptions) of the motor. If problems arise, the remote control is usually replaced with a new one, but often such problems are solved by removing and washing the remote control yourself.

What you need for cleaning

To remove and clean the assembly you will need:

• Screwdriver Set
• Head "13" with ratchet
• Old toothbrush with stiff bristles
• Cleaner
• Cotton swabs
• Latex gloves

Removal

Replacing the throttle valve on a VAZ 2112 or flushing is performed (begins) by removing the unit, for this:

• We remove the terminals of the VAZ battery, de-energizing the electrical network of the motor
• Disconnect the connectors from the throttle position sensor, idle speed control, and also remove the cable from the throttle valve actuator
• To avoid losses, partially drain the coolant
• Then loosen the clamp securing the air hose to the throttle body
• Then a clamp securing the ventilation hose of the 2nd circuit (crankcase gases) to the pipe on the cylinder head cover
• Now you can remove the air hose along with the crankcase ventilation hose

After releasing the clamps, remove the air hose

• Take a Phillips screwdriver and loosen the clamp, then remove the hose for crankcase ventilation (from the 1st circuit) from the remote control fitting
• Then we loosen the clamps securing the hoses that discharge and supply coolant, and remove these hoses
• Now, using the “13” head, unscrew the nuts that secure the throttle assembly to the receiver, photo below

Using a ratchet and a socket “13”, remove a pair of nuts that secure the unit to the receiver

• Then we remove our throttle assembly from the studs and loosen the clamp to disconnect the hose for purging the adsorber (this is necessary if your car has a system for collecting fuel vapors)
• Carefully remove the sealing gasket under the assembly
• If you have never carried out the steps to clean the remote control, then it will most likely be necessary to replace the gasket
• Then we unscrew the screws that hold the IAC (idle speed regulator) and then remove the regulator (don’t worry, the holes for attaching the regulator are designed in such a way that it will not be possible to mix it up when installing it)

Cleaning

Instructions for cleaning the remote control, it was not difficult to guess, require the use of a cleaning agent, with cotton swabs and a toothbrush:

• We clean all channels, hidden cavities, in addition, special attention should be paid to the place for landing the IAC, as well as the area that is located next to the damper
• After finishing the work, the unit should be perfectly clean.
• Don’t forget to clean the crankcase ventilation duct at the same time.
• The size of the channel is large, which is why it is most convenient to blow through it with a cleaning agent
• It is more convenient to carry out blowing with a foot pump, since the diameter of the hose fitting coincides with the wheel
• And the last stage is replacing worn out remote control pipes and blowing the rest with compressed air
• Such procedures can significantly extend the life of your mass air flow sensor.

Assembly

Installation of the remote control is strictly in the disassembly sequence, only in reverse. A cleaned remote control unit makes engine operation stable at idle, and the engine speed no longer fluctuates. There is a clear response when the gas pedal is operated. Additionally, the throttle assembly may need to be modified, but first study the video on such modifications.

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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. motors.

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 large diameter, new problems appear in the operation of the engine that did not exist before. This is due to the fact that the ratio of gasoline and air is violated, 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 people take the position that a 52, 54 or 56mm remote control 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. They leave the standard 46mm throttle valves, and they are quite enough.

What feedback can you leave about the 52, 54 or 56mm throttle assembly?

Is there any benefit to a 52, 54 or 56mm throttle body?

Source

conclusions

Dismantling the intake manifold of a 16-valve VAZ-2112 is quite easy and simple. Of course, it’s worth understanding at least a little about the design of the main power unit, but if desired, any car enthusiast can remove this unit.

Since I removed the flap for flushing, I decided to immediately replace the gaskets on the receiver; it is not known when they were changed before me. The procedure for removing it can be found on the Internet, but it’s a pleasure to remove it (((. At first I couldn’t feel the nuts, because I didn’t know where they were))) Then I couldn’t unscrew it because everything was stuck.

And then I couldn’t remove it because the breather pipe didn’t want to come off until I pryed it open with a screwdriver. He became like a stone. In general, in addition to the gaskets, I had to change both the breather and the oil dipstick seal.

Gaskets cost 65 rubles. , I’ll tell you right away, buy silicone ones, rubber ones are very difficult to install and they don’t last long.

The pipe and clamps and seal cost about 300 rubles.

Now the most interesting thing is that when I took it off, I was a little freaked out) the rubber bands were burnt out, there were some deposits in the receiver itself, there was generally some kind of dirt in the back that couldn’t be picked with a screwdriver. And there’s some kind of crap in the block, blackness, dirt, yuck... how could the car get like this? Now I have to do it! In general, look at the photo!

Full size These are gaskets, as if they were cauterized on one side

Full sizeBreaker who didn't want to take off

Full size Such poop inside the breather

None I’ll measure the compression test today, let’s see what it shows!

Description of the engine structure, the procedure for repairing the power unit of the Lada 2110 car, the stages of assembly and disassembly of parts of the Lada 2112 cylinder head, adjusting the engine valves with your own hands VAZ 2111, VAZ 2112, VAZ 2110. Maintenance of the engine of the Lada 2112 car. Instructions for repairing the cooling system, exhaust exhaust gases, power supply of the Lada 2111. Features of the 8 and 16 valve engines of the Lada 2110. Operation of the main components and assemblies of the engine Remove the plastic engine shield and disconnect the high-voltage wires from the spark plugs (see Replacing spark plugs for VAZ-2111, -2110 engines). Disconnect the throttle assembly from the receiver (see Removing the throttle assembly) and the throttle drive cable. We disconnect from the receiver the vacuum supply hose to the electro-pneumatic valve of the VAZ 2110... ...and the hose of the vacuum brake booster of the VAZ 2112.

Using a 10mm socket, unscrew the two nuts securing the VAZ 2112 receiver to the cylinder head cover supports.

Using a Phillips screwdriver, loosen the clamps securing the couplings connecting the receiver to the intake manifold.

We remove the VAZ 2111 receiver. Use a 10mm wrench to unscrew the bolt securing the guide tube of the oil level indicator of the VAZ 2112. To remove the intake manifold, use a 13mm socket to unscrew the five nuts securing it to the cylinder head of the VAZ 2110.

We remove the intake manifold of the VAZ 2112... ...and the manifold gasket. We install the VAZ 2111 intake manifold and receiver in the reverse order.

None Prepare a standard set of tools and perform the following sequence of actions:

1. Remove the plastic engine shield and disconnect the high-voltage wires from the spark plugs (see “Replacing spark plugs”). We disconnect the throttle assembly from the receiver (see “Removing the throttle assembly”) and the throttle drive cable (see “Removing the throttle drive cable”).
2. Disconnect the vacuum supply hose to the electro-pneumatic valve and the vacuum brake booster hose from the receiver.
3. Using a 10mm socket, unscrew the two nuts securing the receiver to the cylinder head cover supports.
4. Using a Phillips screwdriver, loosen the clamps securing the couplings connecting the receiver to the intake manifold.
5. We remove the receiver.
6. Using a 10mm wrench, unscrew the bolt securing the guide tube of the oil level indicator.
7. To remove the intake manifold, use a 13mm head to unscrew the five nuts securing it to the cylinder head.
8. Remove the intake manifold and manifold gasket.

At this point, the repair work to remove the receiver and intake manifold on the VAZ 2112 engine has been completed. Install the intake manifold and receiver in reverse order.

Source

Big throttle on LADA. Does it make sense to install it? Owner experience

Hi all! In this text we will talk about such easy tuning of the intake system as installing a throttle valve of increased diameter.

What does this give us? It allows the engine to pass the greatest amount of air. And the easier it is for him to do this, the greater the output power will be. Let me remind you that the diameter of the stock damper on VAZ 2108-2115 cars is 46 mm. Accordingly, when installing a throttle with a diameter of 52-56 mm on a car, in theory, the power should increase, which we will check later.

What size should I install the damper then?

By installing a throttle with a diameter of 56 mm on the “stock” motor, we will give the motor the opportunity to process air even more easily, compared to 52 and 54 mm, and even more so 46 mm. After all, with the same pressure on the gas pedal, much more air enters through 56 mm than through 46. But comfort in the cabin will be lost, a jerk will appear at the bottom, and you will also need to work more carefully with the accelerator pedal. In general, without a habit, it will be difficult at first.

52 mm is “neither two nor one and a half.” The effect will be practically unnoticeable! Since the difference with the “stock” one is only 8 mm. Money down the drain, so to speak.

It's best to set it to 54 mm, which is what I did. Some kind of golden mean. But this is all theory. Let's move on to practice.

Let's sum it up

Here everyone decides for himself, we will not enter into disputes, there are simply different opinions, and we are obliged to warn about the pitfalls and the other side of the coin.

Throttle valve diameter VAZ 2112

Why install an enlarged damper?

The size of the standard throttle is 46 mm and is considered the narrowest point in the air path of the car. If you install a throttle with a larger diameter, the passage opening will increase, and accordingly there will be more air flow, which means the engine power will increase.

There are many options for oversized throttle bodies on the aftermarket tuning market, from “52” to “58” sizes. It all depends on the purpose of the installation. For example, on a standard engine without modifications, it makes sense to set the throttle to “52 mm” or “54 mm”. And more or “58” is used for engines with increased engine capacity.

If you put 54 throttle on a standard engine, it won’t get better , but it’s quite likely to get worse. When installing it, you will need to be more careful with the gas pedal, because if previously, when you lightly pressed the gas, the throttle valve opened by 10-15 percent, then with an increased throttle it will be by 20-25%. This will lead to jerking at low speeds!

The enlarged damper comes from motorsport, when it was installed on sports cars not at random, but based on performance. First, the engine is made, power indicators are taken, and if there is a lack of air entering the engine, an oversized throttle valve is installed. If you install it on a standard engine, then it’s money thrown away. After all, the air supply with a standard throttle size is quite enough.

Is there any point in flushing the throttle body?

If we are talking about an increased throttle, then we should not forget about such an operation as flushing the throttle valve. During operation, dirt accumulates on it, which over time leads to worse response to the gas pedal. Even after the throttle flushing operation, the car begins to drive better , which has been tested in practice.

Maybe then the effect of an increased throttle valve can be explained by the fact that instead of a dirty valve we install a new and clean one? Then, before buying a new large throttle body, it is better to first wash the standard throttle body of dirt. This operation will not take much time, you just need to buy a can of “carburetor cleaner”, remove the throttle and rinse it thoroughly. Never use WD-40 to flush the throttle body!

About the zero gear and the enlarged damper

About the zero resistance filter, we can say that it is a useful thing if it is installed correctly. For proper operation, you need to make a cold intake, otherwise it will take hot air from under the hood. In this case, a standard air filter that takes air from a low point under the hood is preferable.

If you want to install a zero, then do a cold intake. This is easy to do, as the most affordable option - take an aluminum corrugation for 80-100 mm air ducts, attach one end to the air filter housing, and the other at the point where the air will be cooler. As a rule, this is far from the car radiator, closer to the wheel.

Step-by-step instruction

All repairs are divided into two stages - disassembly and cleaning. The cleaning time depends on the degree of contamination of the damper and the general wear of the engine. There is no need to use great physical force here; each stage can be done alone without outside help.

What you need for washing

Repairs must be carried out after the engine has cooled down. To remove the throttle assembly, you will need two screwdrivers, as well as a 13mm socket wrench. Almost every car enthusiast has these tools. Any cleaning agent is suitable for working with the damper itself, the main thing is that it removes oil and soot well. For better cleaning, we recommend using cotton swabs; they will help you reach the most difficult to reach places.

Cotton swabs will help to better clean the damper from dirt

When disassembling the mechanism, it may turn out that some consumables are no longer suitable for further use. Therefore, it is better to purchase a throttle valve gasket or a receiver O-ring in advance, depending on the engine size.

Removing the throttle assembly and cleaning it

The throttle assembly must be removed in the following sequence:

1. Having opened the hood, remove the plastic cover that covers the top of the engine.
2. Remove the rubber vent hose.
   If there is a large amount of dirt, remove it with a regular rag. Remove the ventilation hose using a screwdriver
3. Before removing the mechanism itself, we will need to relieve the pressure from the cooling system.
   To do this, remove the hoses with the antifreeze liquid, having previously wrung out several clamps. We remove the hoses with antifreeze liquid, having previously wrung out the clamps
4. To protect the holes from dust during repairs, it is better to immediately cover them with small plugs.
5. To gain access to the valve itself, you will need to remove another hose that ventilates the fuel tank.
6. Now you can remove the damper by first unscrewing the two mounting bolts and disconnecting the cable that connects the part to the accelerator pedal.
   We remove the damper by first unscrewing the two bolts

For further work, you need to decide which cleaning method you will use. For minor contamination, choose the simpler and faster surface cleaner. If the mechanism is covered with a large layer of dirt, and some elements are coked, then a complete cleaning is suitable. Surface cleaning does not require further disassembly of the mechanism. It is enough to remove oil deposits from internal and external surfaces with a rag and cotton swabs. We recommend using gasoline or thinner as cleaning agents.

When completely flushed, we will need to replace the gasket or o-ring. To disassemble the tool, take a small screwdriver and a 13mm wrench to unscrew two more bolts. After cleaning, mechanics recommend blowing out all the holes with a stream of compressed air - this will remove excess moisture and small dust particles.

This is interesting: We tint glass, glue decals and decals - how the law looks at it

What does the throttle valve look like before and after cleaning?

When disassembling the throttle assembly, we recommend paying special attention to the idle speed sensor. The efficiency of fuel use and the smooth movement of the vehicle depend on its correct operation.

To clean it, it is better to use WD 40 and thin cotton swabs. We remove dirt from the case and thoroughly clean the contacts of the device.

Signs of trouble

The problem with many VAZ 2110s is that until a serious increase in speed, the car remains, as motorists say, in a “sluggish” state, it does not pull, and becomes more or less playful only when the revolutions reach approximately the 3000 mark.

This is very often associated with improper throttle operation. Moreover, the main culprit may be the manufacturer, but more on that later. And now - about some more signs of malfunction:

• engine speed fluctuates;
• there is no clear response from the car when you press the gas pedal;
• when changing gears, jerking can be observed;
• vibration is observed when the car is idling;
• stalls when changing speed;
• The engine does not start well if the car is already warmed up and then turned off.

Potentiometer

In other words, the potentiometer changes the opening angle of the damper and thereby affects the controller. When the damper is closed, the voltage does not exceed 0.7 V, and when fully open it reaches 4V. This is how fuel supply is controlled.

https://youtube.com/watch?v=0VSHGo5dcBU

If the throttle valve stops responding to impulses emanating from the position sensor, the following breakdowns may occur:

• Floating speed when the engine is running. Increased idle speed;
• The engine stalls when switching to neutral;
• Uncontrolled fuel consumption;
• The engine is running at half power;
• The CHEK light is on - check if the throttle valve is working correctly.

Correction of a factory miscalculation

It is quite common for a throttle assembly to come out of the factory with something that cannot even be called a defect, but can still be attributed to design errors. In theory, air should flow into the space behind the throttle, for which a channel of approximately 2.5 mm is specially made.

But the whole problem is that this channel was pressed against the wall of the receiver, thus blocking the possibility of air flow. A slight modification of the throttle assembly can help in this case.

To do this, just take a file and use it to make a small groove in the indicated place. 2 - 3 mm will be enough. But before doing this, it is necessary to remove the throttle.

On a VAZ 2110, the throttle assembly is removed in the following sequence:

1. Disconnect the connectors of the sensor that regulates the position of the throttle valve, its drive cable and the XX regulator;
2. We partially drain the coolant;
3. Next is the removal of the air hose located on the body of the mass air flow sensor. Why do you just need to loosen the clamp;
4. We also loosen the clamps: where the throttle pipe is attached to the air hose; where the hose of the 2nd crankcase exhaust circuit is attached to the cylinder head cover pipe. We remove the connected hoses - the air and 2nd crankcase ventilation circuits;
5. Having loosened the clamp, remove the hose of the 1st crankcase gas exhaust circuit from the throttle assembly fitting;
6. Having loosened the clamps, we remove the hoses supplying and discharging coolant;
7. You will need a wrench with a 13mm head, with which you need to unscrew the nuts securing the throttle assembly to the receiver on a VAZ 2110;
8. It is now possible to remove the throttle assembly from the studs;
9. It remains to remove the sealing gasket and, if your VAZ 2110 has a system that traps gasoline vapors, disconnect the hose for purging the adsorber.

Cleaning the remote control

If these signs appear, it is recommended to clean the throttle valve on the VAZ 2110. To carry out this operation, special auto chemicals are used. The most commonly used product is to clean carburetors.

Cleaning the throttle body will cost much less than buying a new throttle body for a VAZ 2110. The price of a new unit is several times higher.

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

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

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

1. Raise the hood of the car. Remove the terminals from the battery. It is enough to throw off the negative terminal. To do this, we use a key set to 10. 2. Dismantle the receiver. Loosen the clamps on the 5 pipes. We remove the pipes. 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 valve and the idle air control (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 control crosswise. We remove the IAC from the throttle block. 7. Using a cleaning product, an old toothbrush and ear sticks, we clean the throttle unit

We pay special attention to the channels and landing sites of the IAC. Remove carbon deposits and dig

Before using a special carburetor cleaner, you can wash the unit with plain gasoline. 8. It is recommended to apply lubricant to the idle speed control rod. To do this, we use silicone grease, which will help extend the service life of the IAC and the throttle unit as a whole. 9. Assemble the throttle assembly. We screw 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 “nickle”. Some car enthusiasts bore out the chamber of the assembly and install a “penny” of increased diameter

This can achieve a more enriched combustible mixture. Motor power increases. It is better to entrust the engine tuning operation to a motor specialist. You should not carry out such an operation on your own, without good preparation.

Another reason for unstable behavior of an internal combustion engine may be a faulty throttle sensor. On a VAZ 2110, you can replace the sensor yourself. Its price is low. It is recommended to use a non-contact sensor. Its cost is slightly higher, but the sensor will last significantly longer.

You can diagnose the sensor yourself. For this you need a tester. Let's look at it 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 should be turned off, disconnect the connector from the sensor and measure the resistance of the potentiometer of the remote sensing sensor.
4. We smoothly turn the sector and observe the tester readings. If the sensor is working properly, the needle will move without jerking and smoothly. If this is not the case, then the throttle sensor should be replaced.

If cleaning and replacing the idle speed sensor does not solve the problem of smooth running, you need to contact a motor mechanic; it may be necessary to conduct additional engine diagnostics or adjust the idle speed control. This operation is carried out using special devices.

Throttle valve VAZ 2112 - flushing or upgrade?

To effectively regulate the amount of air that enters the combustion chambers of a gasoline engine, it is necessary to maintain the VAZ 2112 throttle valve in good condition. The mechanical regulator is located between the intake manifold on one side and the air-cleaning filter on the other. In fact, the quality of the formed fuel-air mixture directly depends on it.

1. Consequences of throttle valve contamination
2. Do-it-yourself damper cleaning
3. Throttle valve upgrade for VAZ 2112
4. Throttle assembly update result

Cleaning the mechanism

Inspection work is carried out exclusively on a cooled engine, in order to avoid injury and burns. The repairman needs to prepare the following available tools: a size 13 socket wrench, screwdrivers, and a special liquid for cleaning the DZ VAZ 2110.

Algorithm for dismantling and cleaning the unit:

1. Remove the plastic cover of the power unit.
2. We unscrew the cap of the expansion tank to minimize the pressure in the coolant system.
3. We dismantle the air ventilation pipe. At the same time, we carry out a visual inspection for the presence of traces of engine oil, which may indicate that the valves are clogged.
4. Using a screwdriver, remove the throttle sensor.
5. Remove the gas tank ventilation system pipe.
6. Disconnect the throttle cable.

To clean the throttle valve of a VAZ 2110, you will need a chemical cleaner that will remove dust, debris, carbon deposits from the throttle valve channels. Depending on the degree of blockage, you can use a household needle to clean it.

We unscrew the idle air control (IAC), also rinsing it with cleaner. At the same time, we carry out a visual inspection of the unit, and if there are defects, we replace it.

The throttle valve gasket on the VAZ 2110 injector should not have mechanical damage. If there is a discrepancy, replace it. The cleaning process is complete. We reassemble in reverse order.

The throttle sensor is also subject to inspection, a malfunction of which can be indicated by instability of idle speed, loss of throttle response and agility of the vehicle. It is sometimes called a throttle position sensor (TPS). The TPS is installed on the intake manifold. The main purpose is to monitor the position of remote sensing in a given period.

To check the functionality of the TPS, you will need a multimeter. The readings when the ignition is on and the remote control is closed should not be more than 0.6 Volts, and when open – 4.0 Volts. If a discrepancy is detected with the specified data or chaotic jumps in the readings, it should be immediately replaced with a new one, having also checked it first.

There are two types of TPS: shoulder-resistive, the service life of which can vary from 5 thousand to 60 thousand, depending on the quality of the assembly. The second type is contactless, which are famous for their long service life, despite the high price, compared to their “younger brother”. Such sensors are also called Hall sensors, as the principle of operation of the electromagnetic effect was invented by a scientist with that name.

If instability in the operation of the power unit is detected, you should contact specialized technical service centers for a high-quality and prompt replacement of the damper or TPS. The average price for a VAZ 2110 throttle body will be about 270 rubles. During diagnostics, qualified specialists will conduct a complete inspection of the unit, check the operation of its main components, and, if necessary, replace it.

All certified service stations provide a guarantee for spare parts and components, which indicates the quality of the products. Having installed new spare parts, the driver will no longer be bothered by instability in the operation of the vehicle for a long time. It should be remembered that systematically carrying out preventive maintenance on a car will significantly extend its impeccable service life and prevent sudden breakdowns, which is much more economical than carrying out major repairs of the unit.

Do-it-yourself cleaning of the throttle valve on a 16-valve VAZ-2112

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

Decorative protection on the engine and its attachment points

Next, you need to unscrew the plug from the expansion tank of the cooling system. to reduce its pressure. Then you will need to loosen the clamps.

Clamps holding the pipes through which the mixture is supplied to the throttle valve

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.

Forced ventilation hose with traces of oil in it

Next, use a screwdriver to loosen the damper heating pipes. They should also be turned off during work to prevent dust from getting inside.

Damper heating pipes

After this, the throttle assembly itself is removed. It looks like this:

The throttle valve removed from the engine is dirty

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.

Flushing the unit using carburetor cleaning fluid

Cleaning channels with a metal knitting needle

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 .

Superficial intervention or deep cleaning?

There are two ways to clean the throttle valve. The first is a superficial intervention that does not require complete removal of the entire device. And the second is a complete cleaning, which must be performed in cases where your car’s engine is not working well.

To perform the first type of cleaning, you will need a pre-purchased cleaning product and a fine brush. Open the hood, remove the corrugation, it goes from the air filter housing to the throttle valve. You will see a valve - it is easy to recognize by its completely round shape. Treat it with a chemical and let it sit for a few minutes, then remove the dirt with a brush. If necessary, use a rag. Repeat the procedure several more times until the flapper valve turns a bright color. This work can be carried out once every 3–5 thousand kilometers, fortunately, it does not take much time.

Removing the corrugation from the throttle valve

For more detailed cleaning of the throttle valve in a VAZ 2110, you need to completely remove the entire injector mechanism. It is also recommended to replace the gasket and O-ring, which are included in the throttle valve repair kit, which is easy to buy at any auto store. Before starting cleaning work, remove the terminals from the battery.

Then disconnect all air pipes connected to the throttle body. After this, remove the fastenings of the throttle cable and unscrew the throttle valve itself. It is attached to two bolts that are screwed into the engine housing.

Electronic sensors must be disconnected carefully to avoid damaging them.

Disconnecting the air pipes of the throttle assembly

After that, take a chemical and treat the entire body and all the grooves of the throttle body. Do this until you completely get rid of the dirt. You can also clean the air flow meter sensor. To do this, carefully treat its hairs with a cleaning product and remove the dirt with a brush. Give the entire device time to dry completely before reassembling. Do not forget to change the gasket and ring, which are located in the corrugation

Also pay attention to whether all air pipes are intact. Perhaps some require replacement with new ones

For maximum effect, you can also replace the air filter.

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Car service nuances

It's no secret that many car owners prefer repairs at service stations. There are many reasons for this.

If you need to clean your throttle body, you won't have to pay a lot of money for it. Today such a service costs about 500 rubles.

But there are several nuances that should be taken into account when visiting a service station.

In addition to cleaning the damper, the technicians will begin to assure you that additional cleaning of a number of components is required, as if without this the repair will not be complete and the effect will not be achieved. All this is a banal attempt to charge you more money for unnecessary work. They may start telling you that the damper is cleaned every 15, or even 10 thousand kilometers, they will offer their services, maybe even provide a discount as a regular customer. Again, the simplest trick. This figure is completely untrue. The frequency of cleaning the throttle valve on a VAZ 2114 car recommended by the manufacturer is 60-70 thousand kilometers. But in practice it turns out to be about 50-60 thousand kilometers.

You just need to monitor the condition of the unit and pay attention to the symptoms of contamination that we have already introduced you to today.

https://youtube.com/watch?v=Xh9LUV37tiE

Whether to do the work yourself or have it done at a car service center is entirely up to you. The most important thing is not to let the problem get worse, as it can result in really expensive repairs.

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General characteristics

If we consider the throttle assembly as a whole, it will consist of several parts:

• coolant outlet and supply pipes;
• ventilation system tube;
• a sensor that controls the position of the damper;
• RXX;
• the damper itself;
• condensation system pipe.

Knowing the throttle structure and what it looks like is necessary for cleaning. This unit is one of the most important components of the intake system. When the throttle operates correctly, a sufficient amount of air is sent to the engine, which is used to enrich the fuel mixture. The damper is controlled by an electronic gas pedal, which, when pressed, changes the opening angle.

This mechanism is located between the intake manifold and the air filter. Getting to it for preventive cleaning will not be difficult even for someone who has just become a car enthusiast.

What error codes appear when the IAC is faulty?

If the idle air control is faulty, the on-board computer may display the following errors:

• P1509 - IAC control circuit overloaded;
• P1513 - IAC control circuit, short to ground;
• P1514 - IAC control circuit, open or shorted to +12 V.

When deciphering fault codes via the Internet or in the vehicle's operating manual, you may sometimes encounter definitions indicating problems with the operation of the IAC. They often indicate a regulator failure. Errors can be seen not only on the on-board vehicle, but also when diagnosing a car using a scanner. Sometimes they indicate not sensor defects, but contact failure.