Throttle valve BOSCH E-gas 16 cl new model VAZ 2113-14-15; 1117-18-19; 2190; 2170-71-72; 2192

Signs of a dirty throttle valve

In order not to confuse the symptoms indicating excessive carbon deposits on the valve, it is better to first visually inspect it, and if there are no visible oil or coked deposits on the walls of the throttle assembly, then, with a high degree of probability, cleaning the throttle valve will not eliminate the problem.

themselves look like this :

• problematic engine starting;
• uneven engine operation;
• floating speed at idle;
• freezing engine speed;
• drops in speed until a complete stop.

Crankshaft position sensor Lada Granta

DPKV is responsible for providing the control system with information about the frequency with which the crankshaft rotates and its angular position. Based on this data, the ECU calculates the phase and duration of the pulses responsible for controlling the injectors and controlling the ignition coil. When reading information, the element sends the received data to the controller, whose task is to process it and issue the necessary pulses to the injectors.

The crankshaft position sensor on the Grant is located near the oil filter.

The unit is highly reliable in operation and durable, and therefore its breakdowns occur infrequently. This is also due to the fact that the DPKV contains no mechanical moving parts.

The most common cause of its malfunction is corroded wiring. Failure of a part entails significant problems for the normal functioning of the engine; if repairs cannot be made, the unit will need to be replaced.

A breakdown of the crankshaft position sensor prevents the engine from starting. We list the main signs of its malfunction:

• problems starting the engine;
• unstable operation of the engine;
• loss of power, etc.

Mistakes when cleaning the throttle valve

Many inexperienced car owners can incorrectly clean the throttle assembly, at a minimum risking not getting the desired effect, and at maximum - completely damaging and disabling the throttle body. Therefore, it is important to understand when to do the procedure, how to do it and what means to use.

Dirty throttle valve

Clean throttle

To properly clean the throttle body DO NOT :

1. Clean the damper in any unclear situation (there are even jokes about this).
2. Clean the damper without removing it (the effectiveness of such cleaning is insignificant, since often it is only possible to remove carbon deposits on the damper itself, and the internal walls and air channels of the damper are not cleaned).
3. When cleaning with a rag, use excessive force, which can lead to damage to both the damper itself and the nearby TPS.
4. Use brushes rather than soft materials. Such an error also quite often leads to loss of performance of the remote control, since on some throttle units the inner wall and damper are coated with molybdenum for even smoother air passage. This layer is often confused with plaque and is removed. As a result, the damper begins to either “bite” or allow excess air to pass through (the speed increases).
5. Forgetting to teach the throttle after cleaning. Dampers with an electronic gas pedal require proper learning of the remote control in order to set the idle speed to the required value.

The throttle valve should be cleaned every 30-50 thousand km .
Adhering to all the above recommendations and taking into account the main mistakes that inexperienced car owners make, no more questions should arise about how to clean the throttle valve, be it mechanical or electronic. For cleaning you need a minimum of equipment and costs, just a carb cleaner and clean rags, as well as a screwdriver for dismantling the unit.

Costly mistakes when repairing a car

Unfortunately, valuable experience in quality repairs is always built on a mass of expensive mistakes. Although no one has canceled banal laziness and sloppiness.

Even ordinary machine repair operations can result in significant costs. And here the matter is not only in the attitude of the master or the owner himself to his car, but also in the mass of pitfalls of technical stones. Moreover, not all of them are mentioned even in the factory service manual.

Replacement of suspension and chassis elements

There are common cases when a client comes to the service center to replace suspension elements, and as a result, when returning the car, for some reason the ABS system malfunction lamp lights up on the instrument panel. Computer diagnostics will most likely indicate a malfunction of the wheel speed sensor, from which repair work was carried out. It’s strange, but the mechanic didn’t touch this electronic meter at all, but it has to be replaced. Where is the connection?

The most common cause of failure of the active wheel speed sensor of the ABS system is careless use of a hammer when replacing suspension elements.

The most common cause of failure of the active wheel speed sensor of the ABS system is careless use of a hammer when replacing suspension elements.

Cleaning algorithm

Now we will give a step-by-step algorithm for properly cleaning the throttle valve.

1. First of all, you need to get to the damper itself. The design is different in different engines. But as a rule, to do this you need to remove the air duct that runs from the damper to the air filter.
2. Dismantle the damper. To do this, unscrew several mounting bolts (2-4 pieces), and also disconnect the necessary connectors (for example, the connector from the absorber purge valve).
3. To clean, you must use a carburetor cleaner. There is a wide variety of them, and in auto stores you can easily find a product in accordance with your preferences and capabilities (we will talk about them later).
4. Using a rag and the mentioned product, you must thoroughly wipe the damper outside and inside.
5. You also need to clean the protective grille (if your car has one).
6. Assembly of the unit is carried out in the reverse order.

An easy way to clean your throttle body

The correct way to clean the throttle body

Clutch and brake sensors Lada Granta

Thanks to the signals sent by these sensors, the controller receives information about whether the corresponding pedals (clutch and brake) are pressed or not pressed. Both elements are located in the area of ​​the pedal assembly.

The clutch sensor is a stabilizer, which from a design point of view is a limit switch. Its failure will lead to surges in speed and unstable operation of the engine. The car owner will be informed about the breakdown by the illuminated Check Engine; in addition, problems will appear with sudden jumps in speed during gear shifts.

The above is evidence of the following malfunctions:

• the height of the pedal is incorrectly positioned relative to the floor;
• clutch sensor is faulty;
• there are disturbances in the circuit.

They also began installing brake pedal sensors on Grants. However, many owners of this car, after only using it for a short time, notice error P0504, indicating a breakdown of this sensor. In most of these cases, the above error occurs due to incorrect adjustment of the element. For this reason, car owners report symptoms such as:

• unstable engine operation;
• instability of speed.

Functionally, the brake pedal sensor is responsible for the position of the pedal itself and turning off the brake lights. In addition to its misalignment, problems with this part can be caused by a breakdown of the spring located inside the sensor.

The presence of a malfunction will be confirmed to the owner by the illuminated Check Engine and the already mentioned error P0504. This error is a consequence of a breakdown of either the sensor itself or its wiring. In addition, the cause of the error is often the misalignment already mentioned above. The new element will cost the car enthusiast approximately 180 rubles.

Cleaning without removal

Also, many car owners are interested in the question of how to clean the throttle valve without removing it. Such methods do exist, but you must immediately understand that high-quality cleaning is only possible by dismantling the damper .

To do this, you will need a special product - an intake tract cleaner. You can use different brands. You can also use EGR valve cleaning fluid, WD-40, and solvents for cleaning.

So, the procedure without removing the node :

1. As in the previous algorithm, you need to remove the air duct to get to the damper.
2. With the damper closed, spray the surface with cleaning liquid and remove the cleaned dirt using a rag.
3. Open the damper and remove dirt from the side surface.
4. Make sure that the cleaning agent gets into all channels. The cleaning procedure is similar using a rag.

Let us repeat once again that for proper cleaning, the throttle valve must be removed from the car. And when installing it back, it is advisable to replace the damper gasket with a new one. Fortunately, its price is low.

It should also be remembered that in most cases, after cleaning the throttle valve, it is necessary to perform actions to “train” it . This procedure is carried out either using a computer (by connecting it to the car's ECU), or by manipulating the ignition and gas pedal. In this case, it is impossible to give universal recommendations, since they can differ significantly for each manufacturer and even model. Remember this!

Replacing TPS

Replacing the auto sensor takes place in several stages, it is quite simple, even a novice car enthusiast can do it. First you need to turn off the ignition and disconnect the wire from the negative terminal on the battery. Then you should press the plastic latch and also disconnect the block with the existing wires from the sensor. To completely remove the device being replaced, unscrew the two bolts using a Phillips screwdriver.

Foam rubber is used as a seal between the throttle pipe and the sensor. It is a component and also needs to be replaced. When installing a purchased device, you need to carefully tighten the mounting screws until the ring is completely compressed.

After installing the sensor, you should connect the wires. Since no further adjustment is required, the work can be considered complete. The entire process of changing the device takes no more than a quarter of an hour.

Causes of pollution and how to deal with them

There are several reasons why the throttle body becomes dirty over time. By avoiding their appearance, you will automatically extend the time between cleaning it. Reasons mentioned include:

• Using low-quality gasoline . If there is sediment in it, it will definitely get into the throttle assembly, where it will turn into carbon deposits. Therefore, try to fill in high-quality gasoline and refuel at proven gas stations.
• Clogged fuel filter . If you do not change the fuel filter in time, then there is a possibility that pieces of dirt from it will get into the fuel system, including the throttle assembly.
• Dust and dirt getting into the intake system . This can be caused by various reasons - clogged air filter, damage to the integrity of the air duct, various mechanical stress.
• Crankcase gases with oil dust . They are the main cause of oil deposits on the valve. They can enter the combustion chamber through the valve cover from the crankcase ventilation system. The situation is aggravated by the fact that they carry oil dust. It is this that burns and remains as sediment on the surface of the throttle valve.

Clogged fuel filter

Change the air and fuel filters on time, fill with high-quality gasoline, and prevent dust from getting into the car's fresh air ventilation system. All this will save you from the need to clean the throttle valve ahead of schedule.

How to clean the throttle valve

There are a number of special products designed to clean the surface of the throttle valve. Some craftsmen use WD-40, acetone, solvents and other similar compounds for this. In principle, they can be used, but the risk of damaging something inside the engine increases. Today, car dealerships sell a large number of special products for carrying out this procedure. All of them are relatively inexpensive. Therefore, taking into account the fact that the throttle valve does not need to be cleaned so often, any car owner is able to purchase such a product.

The cost is indicated as of prices for summer 2021 for Moscow and the region

Results

If the malfunctions described above occur, check the condition of the throttle valve. Cleaning it is not very difficult. However, if you clean it, the dynamic characteristics of the car will improve significantly. Therefore, do not forget to regularly clean the damper every 30.50 thousand kilometers. As for cleaning products, use any of the ones listed above. Fortunately, they are inexpensive, so they are available to any car enthusiast.

Cleaning some car systems is a mandatory task for the modern car owner. The fact is that Russian operating conditions do not spare certain components of the vehicle. Poor quality of gasoline, not very careful operation, dubious origin of materials for maintenance - all this imposes certain difficulties on the operation of the machine. The fuel supply system suffers especially, as it takes on the blow of all factors at once, including harsh climate. Cars have a hard time in Russia, and we have to agree with this. But there are a number of ways to protect your car from problems or return it to its original working condition.

The first thing a car owner needs to remember is the quality of service. Buy original oil, which can cost several times more than universal oil. This way you will protect the engine from many unpleasant influences. It is also worth using good gasoline, which is often not the cheapest. If problems have already arisen, you need to start cleaning the car, and then draw conclusions about proper maintenance and operation. The most common problem in Russian cars is a clogged throttle valve. Let's consider the features of this trouble.

Recommendations for choosing components

Insufficient driver experience and a wide range of spare parts are the main factors that make it difficult to select and purchase components for the Lada Granta.

Cheapness is the first sign of low quality workmanship.

When purchasing, carefully check the catalog items and search indexes with the actual data specified in the operating instructions. If you do not have experience in servicing equipment, use the services of certified service stations and demand a quality guarantee for the work performed.

What benefits does cleaning the throttle valve in your car provide?

Cleaning any component of the machine allows you to return to high-quality operation of the equipment. This is why oil and fuel filters are replaced, small systems and important components of your car are cleaned during the service process. But the standard maintenance procedure does not include flushing the throttle body. The problem of clogging this element can occur on any car, because every internal combustion engine uses this unit to distribute fuel among the cylinders of the power unit. Cleaning the throttle valve may be necessary when the car shows the following problems:

• at idle speed when the engine is warm, the tachometer needle floats, changing the speed range;
• on an automatic transmission, jerking becomes noticeable, especially when switching from first gear to second;
• fuel consumption increases - often the engine begins to consume 10-20 percent more gasoline;
• Certain tremors appear at idle or when the unit operates stable at the same speed;
• the engine pulls worse, there is a delayed reaction to pressing the gas pedal or the car “chokes”;
• Dips may occur (most often on a manual transmission) when accelerating.

How to flush the throttle valve yourself?

Despite certain difficulties in performing this task, it is quite possible to wash the throttle valve with your own hands. To do this, just read the normal manual for this process, as well as acquire all the necessary materials and tools. The process of flushing the throttle body will look different on different cars. For example, on carburetor cars it is much easier to complete this task, but the carburetor must be cleaned regularly. But in modern injection power units, flushing the damper is not so easy. However, nothing is impossible. To complete this task you will need to do the following:

1. remove the pipe leading from the air filter directly to the throttle valve;
2. Next, follow the instructions to dismantle the throttle - often it is enough to unscrew four bolts;
3. We put all the fasteners carefully in a box so as not to lose them, because purchasing them will not be an easy task;
4. To flush the throttle valve, you can use special products (for chokes or carburetors);
5. All internal parts should be washed until they are shiny, then allow the system to dry completely;
6. put all the components in place and carefully tighten the fastening bolts, then do not rush to close the throttle with the lid;
7. insert the key into the ignition switch and turn it to the stage of switching on the ignition directly, but without starting the engine;
8. Make sure the throttle valve closes completely after warming up (it will take 5-15 minutes to warm up).

After this, you can close everything with a clear conscience and test the car for changed parameters. In general, the procedure for cleaning the throttle valve takes about an hour, but the first time everything may take a little longer. The main task of the car owner is to correctly and accurately follow all instructions. Many people ask the question what to do if the valve does not go into place after the procedure. In this case, you will have to go through the process of “learning” the throttle valve, which is worthy of a separate instruction. But this process is best performed by specialists.

Do-it-yourself throttle valve cleaning. — logbook Lada Granta Ice 2014 on DRIVE2

When I removed the air duct when replacing the speed sensor, I paid attention to the throttle valve. On it, 97,700 thousand kilometers away, deposits have accumulated, apparently from crankcase ventilation. According to the BC, the throttle position on a warm engine showed 4 (which is not good, it should be 1-2). For work you will need: hexagon number 5, a Phillips screwdriver (loosen the clamps), carburetor/throttle valve cleaner, rags and

30 minutes time.

This is our patient

Next, remove the air duct and the large crankcase ventilation pipe

Disconnect the terminal from the remote control (I also removed the terminal from the battery) Unscrew the 4 hex bolts. Two of which were searched for and unscrewed by touch. Unfortunately I didn't take a photo.

Further inspection of contaminants:

View from the receiver

from the air duct side

also from the air duct side

from the receiver side

I did not change the rubber o-ring, it looks and feels like new.

Cleaned with carburetor and throttle valve cleaner. I bought the cheapest one that was in the store. I didn’t take any photos of the cleaning process either, I was distracted. Here is the end result:

Clean valve on all sides, remove all deposits

Cleaned with this product

After installing it in place, I turned on the ignition for 60 seconds so that the damper determined the zero position. Acceleration from 1.5 thousand to 4 thousand rpm. per minute didn't.

Result: This may be self-deception, but the engine feels softer/quieter. According to the BC, the damper position at XX shows 1, very rarely 2.

Price: 150 ₽ Mileage: 97,700 km

When is the best time to flush the throttle valve at a service station?

A service station today is not a motorist's best friend. Due to the huge number of these companies and the incredible competition, they try to squeeze everything they can out of the visiting driver. That’s why there are even legends about some service stations. The client came to change the oil and left with a new engine. However, in some situations it is impossible to do without the participation of a professional company. In particular, it will be very difficult to clean the throttle valve yourself if the following features occur:

• the car is new, belongs to high-tech developments - in such a car you won’t even get to the valve;
• the car is under warranty - if you try to clean the damper yourself, you will lose warranty service;
• you are completely far from plumbing, you have never held a wrench in your hands - it is better not to experiment;
• at a well-known service station you were offered a more or less affordable price for flushing the entire fuel supply system;
• Not only is the valve clogged, problems also arise due to poor functioning of the injector;
• you simply don't have the time or suitable space to perform the procedure yourself.

If you don’t have the time, tools or desire, it would also be better to pay specialists and get more or less high-quality services with some kind of guarantee. Of course, talking about a guarantee from modern service stations is not very pleasant, but the responsibility of the master to you personally is present. You need to choose a normal service station to get more advantages in completing your task. Only professionals should be trusted to work on your car. We suggest watching a video with the process of cleaning the throttle valve using different means: