We have already talked about why lambda probe tricks are needed, what they are and how they work. Outside the scope of that article, the question remained how to make these snags with your own hands. It is easy and affordable for many car owners. What is the point of making tricks yourself if they are already sold ready-made? There are at least two reasons.

1. Finished products will be more expensive anyway. If in the case of mechanical tricks the difference in cost may not be very large, then for electronic tricks it is significant.

2. It is not always possible to quickly find the right snag on sale. When a serviceable car is needed urgently, it is sometimes faster to make a snag with your own hands.

There are two types of tricks, as we already know, so we will analyze an independent version of making both.

Making a mechanical snag

As you remember from the last article, the basis of this type of snag is a metal sleeve. Optimal material for the manufacture of bronze, because it is it that best resists temperature effects. For self-manufacturing bushings need a lathe and experience with it, but you can always find a turner who, for a minimal fee, will make the desired workpiece according to the drawing. Such a drawing.

Actually, in the simplest cases this is already enough, but it would be optimal to fill the hollow part of the sleeve with ceramic chips, which is not a problem to find. A home-made blende is installed in the same way as the purchased one - we unscrew the oxygen, install a sleeve in its place, and screw the sensor itself into it.

The need to look for a turner and contact him somewhat reduces the attractiveness of self-manufacturing a mechanical snag, and the difference in cost will not be so big, but this option also has a right to exist if for some reason it does not suit electronic snag.

Making electronic snag

It would seem that an electronic “device” that mimics the work of a lambda should be very complex, but in fact it is a very simple and primitive circuit that nevertheless works. For manufacturing, you will need a car wiring diagram, a soldering iron, a knife, rosin, a 1 microfarad non-polar capacitor and a 1 mΩ or 150-200 kΩ resistor. It is usually advised to take a 1 mΩ resistor, but on some cars the signal imitation is not very accurate, “ ” is extinguished, but the fuel mixture is not very correct, and the consumption is high. Then you will need to experiment a little with resistors.

1. It is necessary to figure out in the wiring diagram of your car how many and which wires go to the lambda probe. There are from two to four wires, depending on the presence of additional heating. Most often, it is four-contact sensors that are found, of these four contacts, two are responsible for heating, we do not need them, but we need a signal contact and ground. Almost all diagrams on the Internet indicate the color of the wires, but it may not match on your car, so find signal wire and ground needed according to the scheme.

2. Then we arm ourselves with a knife and a soldering iron. A resistor must be soldered into the signal wire, and a capacitor between the signal wire and ground on the ECU side. Naturally, all connections must be insulated. In principle, after these manipulations, everything should work.

Electro snag lambda. Photo — drive2

3. The third step is optional, but highly desirable because it can extend the life of the circuit. Additional elements and wires can be place in a small plastic box or container and fill with epoxy.

Even such a primitive scheme works great, and the cost of making it is cheap. Buy electronic emulator will be much more expensive. Yes, more advanced circuits are usually used there, sometimes with microprocessors, but the difference in cost can be tenfold. There is an incentive to take up the soldering iron yourself.

In general, it is the electronic version that seems to us the most reasonable for self-production, the nuances can only be in the selection of a resistor, but they are inexpensive, soldering one to another in the circuit is also not a great difficulty, so you can experiment. The result is a fully working "gadget" for a penny.

Environmental standards for new cars are getting tougher every year. This forces automakers to invent ever more sophisticated ways to fight for cleanliness. exhaust gases. Nowadays, no new production car is complete without a catalytic converter or particulate filter, EGR or ADBLUE and sophisticated mixture control.

Classification of the main exhaust gas treatment systems

There are several common devices for cleaning exhaust gases.

The implementation of all these devices is not cheap. And in the case of the SCR system, it also increases the weight of the car up to 300 kg. Repairing a malfunction can cost, in some cases, up to a third of the value of the car. In the civilized world, the government is interested in the fact that as few pollutants as possible are emitted into the air. In many countries for vehicles with expensive systems cleaning, certain benefits are provided to compensate for the waste of the car owner and encourage him to maintain the environmental cleanliness of his car.

There are no such programs in Russia. Yes, and environmental standards are much lower. In view of this, in the event of a problem with the catalyst, many car owners choose to remove it with a replacement for a flame arrester, stronger or a simple insert.

After this procedure, it is necessary to solve the problem with the ECU error about the inefficient operation of the catalyst. There are three common ways here:

• installation of a mechanical blende;
• installation of an electric snag;
• ECU firmware.

Installing a snag lambda probe

Each of the methods for bypassing the ECU control function has its own area of ​​\u200b\u200bapplication and its own characteristics.

Installation of a mechanical blende is effective in relation to the environmental class EURO-3. For the EURO-4 class, malfunctions are possible. A blende with a calibrated hole, most likely, will refuse to work at all. On EURO-5, mechanical devices, both with a catalytic element and with a calibrated hole, are almost always useless.

The principle of operation of the snag lambda probe

To understand how it works
electronic snag, you need to understand the principle of the lambda probe. Without deepening into physical and chemical processes, its work can be characterized as follows:

The oxygen sensor is an EMF generator that creates voltages (approximately 1V at the maximum value) on its contacts under the influence of high temperature.

Between the contacts there is a layer of zirconium alloy, which changes its conductivity depending on the presence of oxygen in the exhaust gases. If there is no oxygen in the exhaust, then the zirconium layer has a minimum resistance and completely passes the EMF generated under the influence of high temperature. When oxygen appears in the gases passing through the sensor, the resistance increases, and the voltage in the circuit drops.

In systems above EURO-2 there are two oxygen sensors: before and after the catalyst. The first sensor is used to scan the presence of oxygen in the exhaust and transmit data to the ECU for correction fuel-air mixture. The second sensor is the control one. It also checks for the presence of oxygen after passing through the catalyst. If the readings of the two sensors are the same or close, this means that no changes have occurred with the gases. That is, the catalyst is not working. And on dashboard the "CheckEngine" error lights up.

Electronic blende is designed to change the readings from the second sensor and make them as similar as possible to the readings of an oxygen sensor with a normally working catalyst.

There are two fundamentally different devices for correcting the lambda probe signal.

1. The device is based on one resistor and one capacitor. The simplest fixture. Works effectively on vehicles with environmental class up to EURO-4 inclusive. There may be problems with EURO-5, since the algorithm for processing data from the lambda probe is more perfect. It is a resistor and a capacitor, which are selected according to technical parameters for a specific computer and are introduced into the control lambda probe circuit.
2. Microchip trick. A complex device, as a rule, industrial production. Designed to change the output signal from the lambda probe on EURO-5 and EURO-6 vehicles. The pulse from the sensor is converted by software and sent to the electronic control unit in a form that corresponds to a perfectly working catalytic converter.

Installing an electronic snag lambda probe

After removing the catalytic converter, the second lambda probe is not removed from the system. It is installed either in the housing where the catalyst was installed, or in the provided hole in the replacement.

After all the work has been completed, our car service issues a guarantee for the work performed and the quality of the electronic tricks used. If any complications arise during operation, please contact us immediately. Within warranty period We will correct any comments free of charge.

The lambda probe is oxygen sensor, an important part of the exhaust system of a car with modern EURO-4 or higher standards. This sensor measures the amount of oxygen in the exhaust gases as they pass through the catalyst. Today, automakers install two sensors on their cars - one before the catalyst, the second after it.

The lambda probe cannot be repaired; in the event of a breakdown, the entire sensor is replaced with a new one. Before his "death", he gets on his nerves terribly and gives various errors. Most often this is due to a malfunction of the catalyst.

Usually, car owners, in order not to buy a new catalyst, insert a flame arrester instead of it, or simply cut it out. Thus, the exhaust gases do not pass through the catalyst and the readings of the first sensor and the second are the same. Based on these indicators, the electronic engine control unit generates a “check engine” error, which it displays on the dashboard and begins to edit combustible mixture entering the combustion chambers. After that, the engine goes into emergency mode work due to incorrect sensor readings and new errors, changes the incoming mixture to the engine, which increases fuel consumption, reduces the efficiency and stability of the "heart" of the iron friend.

There are two solutions to this problem. The first method is to install a snag lambda probe, and the second is to flash the electronic control unit by downloading new software.

Electronic and mechanical lambdas

Mechanical snag lambda probe - a bronze spacer of the required size, with ceramic chips, similar in structure to the catalyst, inside. The essence of the method is to make the sensor believe in the presence and serviceability of the catalyst. In this case, gases pass through the holes of the spacer, are filtered through ceramic chips, this leads to the oxidation of CO and CH with oxygen, from which their concentration decreases. After that, the sensor transmits the "correct" readings to the computer.

Electronic snag lambda probe - this is a small microcomputer that processes data from the first sensor, independently generates indicators for the second sensor, which must be installed after a working catalyst, and sends it to the "brains". This microprocessor not only removes errors due to a malfunction of the second lambda and catalytic converter, but also ensures the correct and smooth operation of the entire system.

ECU firmware

Another way to solve problems with the second lambdas and the catalyst is to install a new firmware. In this case, the program code of the control unit changes, in which all data, signals and indicators of the second lambda are excluded, that is, the sensor itself becomes useless and unnecessary, and further adjustment of the fuel map occurs based on the readings of the first oxygen sensor.

Most cars from the factory are provided with such firmware. These firmware also help to change the fuel map of the engine, due to which it achieves fuel economy, or an increase in work efficiency.

How much does it cost to buy a snag lambda probe

You can buy oxygen sensor snags at a specialized auto parts store. Prices for the purchase of snags in Moscow:

• Ordinary mechanical plug without FortLuft mini-catalyst. This device is suitable for cars up to 2001 of release. The cost per piece is 500 rubles.
• A snag on the second sensor with a metal mini-catalyst, suitable for a car with Euro-4 standards. The cost per joke is 1150 rubles.
• Corner snag will cost from 1400 rubles.
• An electronic snag of a lambda probe, or a catalyst emulator will cost from 1,500 rubles, plus installation work will cost 500 rubles.

Do-it-yourself lambda probe snag

Most often, mechanical snags are made of metal from bronze or heat-resistant steel. The idea of ​​the method is that it is necessary to force the oxygen sensor to breathe not with a “full nose”. To do this, it is slightly removed from the exhaust pipe and from the flow of exhaust gases, it will “breathe” through a small hole. In this way, less gases will flow to the sensor, and it will believe in the existence of a working catalyst.

To make the spacer itself, you need to take the drawing and turn it to the turner. When you get your hands on a new part, the matter remains small. It is necessary to remove the terminals from the battery and from the pit or on the lift, first remove the electronic connector, and then unscrew the lambda probe. The most important thing is to unscrew it carefully, you should always remember that the sensor cannot be restored and if it breaks, you will have to buy a new one.

Don't know how to properly putty a car? Find out .

: detailed instruction.

If it does not unscrew, in no case should it be knocked out with a hammer, or torn off the thread, or heated. When the CD is in our hands, instead of it, we first screw the snag, and then we screw the previously removed sensor into it.

The cost of this issue directly depends on the turner and the cost of his materials.

Of course, you can make your own and electronic snag. The main skill on which the result will depend is the ability to solder electrical parts or the presence of a person nearby with the necessary skills.

If you have these skills, then you will need:

• Soldering iron with thin tip
• Rosin
• Resistor 1 MΩ
• Capacitor 1uF

In this case, all data from the sensor is sent to the electronic control unit. To introduce a home-made blende, first of all, we disconnect the terminals from the battery, then it is necessary to dissect the wire going from the sensor itself to the connector. Before us are 4 wires, 2 of them are black, one is white and one is blue. It is necessary to cut the blue wire and connect it back through soldering to the resistor. Then you need to solder the capacitor between the white and blue wires. In the end, everything must be carefully insulated with heat shrink or insulating tape. Before doing such a custom, think about whether it might still be worth buying an electronic snag or a catalyst emulator before you get into the wiring yourself.

Another option for solving this issue is flashing the control unit. It is not recommended to do it yourself without the equipment and the necessary skills and knowledge. If you try to use this method to solve the issue without experience, then there is a huge risk of spoiling the original engine firmware, which is very problematic to get. Therefore, it is worth referring to good professional who will do the job for you.

What can be the consequences in connection with the installation of various types of CD tricks

If you do everything yourself, then all the work is done at your own peril and risk, which means that the consequences can be both positive and negative. Various malfunctions may occur with incorrect installation. For example: malfunctions of the motor due to an incorrect mixture preparation process, damage to wires when introducing a home-made blende, damage to the sensor and various errors in the automobile “brain”.

Outcome

Before doing something on your own, you should always sensibly assess your strengths, if you are sure, then please, if not, then you should contact the masters. Yes, at the station Maintenance you, too, most likely will not be given guarantees about further performance after unscrewing the lambda, but still you should contact the service, where professionals will install either mechanical or electronic snags, or in extreme cases, firmware and tuning specialists will download a new program code for your ECU.

To date, the quality of domestic gasoline leaves much to be desired. All those impurities that are very often added lead to a number of breakdowns and violations. And one of the main breakdowns is a malfunction of the lambda probe or catalyst. And the replacement of the catalyst costs motorists a tidy sum, which leads to the fact that they often knock out the ceramic catalyst themselves. But this leads to another problem - the Check Engine signal appears on dashboard, which indicates the absence of a catalyst. For many, this light bulb annoys and even distracts the attention of drivers, which can lead to sad results.

But very often, motorists themselves make mistakes that lead to damage to the sensors. Here is an example of the most common:

1. Use of fuel, the brand of which does not match the engine;

2. When attaching sensors, the use of sealants, which include silicone; or those that reduce their plasticity at room temperature;

3. Multiple unsuccessful engine starts in a short period of time;

Interesting to know! On professional SUVs, the exhaust pipe is brought up not for the sake of beauty, but for practical purposes. After all, if the exhaust looks up, then the car passes through mud or a deep ford without drawing moisture into the pipe.

If we take cars that comply with the EURO-4 environmental standard, then they have two lambda probes (hereinafter referred to as the sensor): the first is in front, and the second is behind the catalyst. And, as a rule, it is the second of the sensors that most often fails. The signals received from these sensors must be different. But if the owner of the car removed the catalyst or replaced it with a flame arrester, or, more likely, one of the sensors needs to be replaced, then the signals received from these two sensors will begin to match, which will lead to the activation of the emergency mode. And this, in turn, leads to the fact that the controller will select the average parameters for injection. That is, fuel consumption increases, and at the same time, engine power decreases, instability appears in its operation at Idling. Well, on the dashboard lights up Check Engine.

It is interesting! In one American city, a competition was recently held, according to the rules of which the participants had to identify the brand sports car by sound. "Easy!" you say? And with closed eyes? In total, about 150 cars took part in the competition, and the sounds of Ferrari and Subaru became the leaders of identification!

If the car is older, then the sensor, as a rule, is installed only one. It is located in front of the catalytic converter. This is interesting: the very first oxygen sensor was a part that was a very sensitive element, not equipped with a heater. It was heated by exhaust gases, and therefore this process took time.

One of the solutions to this problem is a snag lambda probe, which you can do yourself, and it will cost less than buying a new sensor. In total, there are three types of lambda probe blende:

mechanical

Electronic

flashing

Mechanical type of snag

If you chose mechanical type blende, then instead of the catalyst, the so-called “spacer” is installed, or, as it is also called, the sleeve. Place it between exhaust pipe and sensor. The size of this part, as you can see in the drawing of the lambda probe blende, is strictly defined, and it is made of bronze or heat-resistant steel.

A small hole with a diameter of 2 mm is drilled in the spacer, through which exhaust gases will enter the spacer. A ceramic crumb is placed inside the spacer, which is pre-coated with a catalytic layer. As a result of the interaction of exhaust gases with ceramic chips, oxidation occurs, which leads to a decrease in the concentration of harmful substances at the outlet. This will lead to the fact that the data from both sensors will be different, and the control unit will take this as normal operation of the catalyst.

In order to install the spacer yourself, you need to perform a few simple steps. It is necessary to drive the car into a pit / overpass and disconnect the negative terminal. Then we find the sensor and unscrew it. Next, connect the negative terminal and start the engine. If after that the electronic control unit gives an error, repeat the procedure again. This variant of blende is the most economical.

This type of blende is great for all cars: both domestic and imported. This is interesting: according to research by the British insurance company Churchill, a straight-through muffler increases the power of a car by an average of 5%, but at the same time worsens the driver's hearing by 2-3% over a year of intensive use of the car.

Electronic type of snag

Make a snag electronic type already much more difficult. The most advanced motorists independently solder the circuit and make a snag using one resistor or one capacitor. For the simplest electronic snag, you will need:

- capacitor (non-polar) K10-17B imp., capacity 1uF Y5V, +/-20%, 1206 (Item number: 759300515)

Resistor (resistance) C1-4imp. 0.25 W, 5% 1 MΩ (P/N: 51741)

soldering iron

Solder, rosin, electrical tape

Electronic snag is installed on the wires that go from the sensor to the connector. On some vehicles, the connector is located in the tunnel between the driver's and passenger's seats. It can also be located in engine compartment, and under the torpedo. This is what the connection diagram looks like.

Most often, people ask themselves the question: “Where to put the capacitor?” If you look from the connector, then the first is the capacitor, and after the resistor.

Important! Be sure to disconnect the negative terminal before starting work. When all connections are connected, they must be properly isolated. The most successful would be to place the entire circuit in a plastic box and fill it with epoxy glue.

It is best to make the connection in the place of the wire where the corrugation is easily detached, and then close the insulation with it. Also sold special devices with a microprocessor - emulators.

Important! The lambda probe emulator is not a snag. It ensures the correct operation of the control unit, and not just deceives it. The microprocessor installed in the emulator evaluates the exhaust gases and also analyzes the signal processing situation from the first sensor. And after that it generates a signal that corresponds to the signal from the second working sensor.

flashing

In addition to tricks, there is also a flashing of the control unit. The flashing consists in the fact that after it the control unit ceases to take into account the signal from the sensor installed behind the catalyst. In its work, it focuses only on the signal from the sensor installed in front of the catalyst.

It should be borne in mind that it is almost impossible to find factory firmware, since they do not meet current European environmental standards. Alternatively, you can turn to a well-known specialist who, with the help of some changes in the program, will turn off the reception of signals from the second sensor by the control unit, resulting in a catalyst blende.

You can also order / buy firmware via the Internet or on the market, but then all the responsibility falls on your shoulders, because you are actually buying a “pig in a poke”, since poor-quality firmware can lead to serious engine damage.

Modern engines are usually equipped with injection engines with an electronic control unit that controls the operation power unit. To do this, it relies on the readings of many sensors. Some of them are located in an accessible place, which greatly simplifies the replacement of a defective part. However, not in every case it is rational to replace the sensor, and then do-it-yourself catalyst snag is performed, the scheme of which is not very difficult to understand.

This is a lambda probe. In another way, it is also called an oxygen sensor, which is installed in the exhaust system. Read on to find out why this is done.

Problem

To prevent the car from spoiling the environment with its exhaust gases, an environmental standard was invented that regulates the content of harmful substances in the exhaust system. It began to operate in many European countries since 1988 ("Euro-0"). It is updated periodically, and obsolete requirements are replaced by new ones. Euro 6 is currently in effect.

These requirements have forced car manufacturers to build in additional devices, one of which is a catalyst. Its task is to reduce the amount of nitrogen and carbon in the exhaust gases. In most cases, this is achieved by changing the chemical composition. In this case, a lambda probe must be present. Do-it-yourself catalyst snag is performed, its scheme is very simple.

Since a faulty catalyst is very expensive, one effective method was invented that allows you to solve the problem to some extent at minimal cost.

Function of the oxygen sensor

To understand the need for trickery, it does not hurt to learn how the lambda probe works. Many instead of this sensor put various imitating devices, but in reality it is not always possible to achieve the desired result. For complete combustion of the air-fuel mixture, optimal proportions of fuel and air are required - 1:14.7. With the help of the DMRV, the ECU (electronic control unit, in other words, the controller) “understands” how much air enters the cylinders and, depending on this, regulates the fuel supply through the nozzles.

However, the controller is not aware of exactly how the fuel burns, and therefore the lambda probe installed on exhaust system. In some cases, it is replaced by a snag of a catalyst sensor. The role of the sensor is to determine the amount of oxygen remaining after the combustion of the fuel mixture and send data to the ECU.

The computer takes appropriate action depending on the situation:

• A low volume of oxygen indicates therefore the fuel supply is increased to catch up with the norm.
• With a large volume of oxygen, which indicates the controller, on the contrary, it reduces the fuel supply.
• In case of incorrect signals coming from the sensor, or their absence, the system starts to work in emergency mode, which is set by the program.

Since the Euro-6 requirements have come into force at this point in time, on most cars there are no longer one, but two elements. One of them is installed in front of the catalyst, and the other after it. Often, it is on this sensor that a do-it-yourself catalyst snag is placed, the diagram of which will be given later in the text. The controller takes readings from both lambda probes, which allows you to more accurately regulate the fuel supply.

Catalyst failure

There are a number of signs by which one can judge the malfunction of the catalyst and begin to draw appropriate conclusions. They may be:

• the car cannot start or immediately stalls;
• poor acceleration, while the engine is gaining momentum slowly;
• but this symptom may indicate a malfunction of the injectors;
• the color of the exhaust takes on a bluish tint with an unpleasant odor;
• the presence of a metallic sound during acceleration;
• Check indicator engine on the dashboard.

In some cases, when on the dashboard Engine panels, then at computer diagnostics may light up. In many ways, this indicates a catalyst, although the problem may be different.

Solutions to the problem

If a catalytic converter malfunctions, you can use one of the effective ways solution of the problem. This allows you to significantly save on the purchase of new equipment. There are three ways to cheat the ECU:

• installation of a mechanical blende;
• installation of electronic blende (lambda probe emulator);
• perform a computer reset.

Let's consider each of these methods in more detail.

mechanical way

The technique is to use a metal spacer, or sleeve, that is placed between the oxygen sensor and the exhaust pipe. Anyone with some degree of turning skills can make their own snag. For the manufacture of the part, bronze or heat-resistant steel is taken. In addition, you will need a scheme for the snag itself, which is easy to find, since many people have a computer. In his absence, you can use the help of friends or acquaintances.

At the end of the sleeve there is a small hole with a diameter of 2 mm for the passage of exhaust gases. Interestingly, do-it-yourself catalyst snag is done quite easily. Its scheme provides for the presence of ceramic chips with a catalytic coating inside.

The whole point is this. Exhaust gases first enter the sleeve and pass through the ceramic filler. As a result, a chemical reaction occurs, due to which the concentration of carbon monoxide and hydrocarbon (CO and CH) decreases. After that, the gases reach the oxygen sensor, which transmits normal readings to the computer.

From a constructive point of view, blende is the same catalyst, only in a much smaller size. To install it, just follow the simple instructions:

• Remove the "-" terminal from the battery.
• Get to the location of the second oxygen sensor (which is after the catalyst), if necessary, after partial disassembly.
• Disconnect the connector, unscrew the lambda probe with a 22 wrench and install the sleeve.
• Screw the oxygen sensor into the snag and connect the connector.

As you can see, installing a blende on a catalyst is not as difficult as it might seem at first glance. It is more convenient to do all the work on a pit or a lift.

Electronic way

Electronic snag also gives a positive result, and anyone who is friends with a soldering iron can assemble it. For the manufacture of the simplest part, you can not do without:

• non-polar capacitor with a capacity of 1 microfarad;
• resistor with a resistance of 1 Mohm;
• soldering iron, knife, wire cutters;
• solder;
• rosin.

An electronic snag is mounted on the wires of the oxygen sensor. In some cars, the lambda probe connector is located in the passenger compartment between the front seats. For others, it can be found in the engine compartment, and for others, it is again located in the cabin under the torpedo.

Before installing the lambda probe emulator, you need to disconnect the negative battery terminal. Further actions can be performed according to the scheme:

• Remove part of the insulation in the area in front of the connector.
• Cut off the black wire, and connect the gap with a resistor (solder).
• Connect the capacitor with one contact to the gray wire, and the other to the black one, but after the resistor (closer to the connector).
• Insulate the wires or do it after checking.
• In conclusion, it remains to start the engine and see if the Check Engine indicator will light up in any mode of operation. You may need to drive a little.

As you can see, there is nothing complicated here either. There is only one caveat: this method may not work on some cars. Resistors and capacitors must be selected with a certain rating. And if the oxygen sensor, which is in front of the catalyst, is faulty, then the controller does not make sense to “mislead”. In addition, an electronic catalyst blende can cause serious material damage to a car, as its design is being improved from year to year. Therefore, it is better to do with regular parts instead of failed ones.

ECU flashing

This method is a cardinal solution to the problem. The point is to exclude the oxygen sensor after the catalyst from the “field of view” of the ECU by programming. In this case, the computer will operate with data from the first lambda probe, and the emergency mode will not turn on.

If mechanical snag catalyst can bear fruit, then this method has significant disadvantage: Unable to find the correct factory firmware. And you can use third-party tools only at your own peril, since there is a risk of spoiling the engine's performance. To solve this issue, you will have to look for an excellent specialist, and in terms of money, the costs can be compared with the cost original spare part. So is it worth it?!