Tightening control over the level of exhaust gases emitted by cars has yielded positive results. Most machines are equipped with third-party equipment to control and reduce toxicity levels. At the same time, there was a certain gradation of technical means: those working on low-quality fuel and those that are not provided for this. The latter turned out to be much more. The point is that after buying a car abroad, it ceases to fully work on domestic gasoline due to its poor quality.

To bring the mechanism into a workable form, the owners are forced to systematically find all sorts of options and subtleties to eliminate problems. So, after the first several thousand kilometers of using the car on native gasoline, interruptions in work with the catalyst begin. The error indicator on the central instrument panel lights up, fuel consumption increases sharply. It is necessary to visit the service station for diagnostics.

What is a lambda probe blende for?

Deception of the lambda probe, or, as it is also called, the emulator, is necessary in order to "deceive" the system, hence its name. What is it about? Poor quality fuel means that not all of the mixture is ignited in the combustion chamber. Waste flows through the exhaust system to the catalytic converter and muffler. On the way, they clog the central holes, a blockage of the gas flow is formed. Carbon deposits and fossils are deposited on the surface of the parts. All this leads to frequent replacement of standard equipment. Too frequent visits to the service center are also not profitable, both financially and in time.

Important! It is impossible to avoid this, provided that low-quality fuel is used, but repairs can be significantly postponed for a long period if a snag is installed.

Mechanical (spacer) blende for lambda probe

So, the snag of the standard catalyst is a metal fitting, 30 mm x 18 mm in size. In the center there is a through hole with a diameter of 0.6 mm for gas intake. Installed directly on the standard place of screwing the oxygen sensor (another name for the lambda probe). The hole itself is located either at the beginning of the catalyst tube, or directly on the metal housing. On one side of the union there is an internal hole - a thread, on the opposite side - an external one. The diameters are different for each vehicle.

The principle of operation is as follows: the exhaust stream flows from the exhaust manifold to the catalyst. On the way, some of the gases are intercepted by a spacer for measuring the contents and determining the level of toxicity. Internally, they are diluted with oxygen. Incorrect data is transmitted to the central control unit, and an error is displayed on the instrument panel.

Electronic emulator or blende for a lambda probe

Along with the mechanical spacer, there is also an electronic analogue. Such a snag is a board with many capacitors and solders on the surface. Power is supplied by two soldered power wires that carry current from the electronic engine control unit. The dimensions of the emulator can be very different, from a few centimeters to the size of a matchbox. Much depends on the model and manufacturer. The emulator is installed near the standard engine control unit. The latter tends to hide from human sight: under a torpedo, between the seats, under the steering wheel, in the engine compartment.

Important! If the master cannot find the location, then he should look at the operating instructions for the technical device.

The principle of operation is as follows: the oxygen sensor transmits data on the composition of the exhaust gases to the ECU. Along the way, the emulator intercepts these indicators, replaces them with its own and sends the ECU the already necessary numbers, which do not have peak indicators and are within the normal range.

Which lambda snag is better

It is impossible to answer unequivocally that for this technical device a metal spacer is more practical, and for another - an electronic one, it is impossible. Nobody will give you such a recommendation. For each car, you can apply both the first and the second type of trick. But there is one "but".

Important! Engines with a system of Euro-5 and higher must be equipped only with electronic emulators, all others can combine options. This limitation is explained by the fact that standards 5 and 6 are more demanding and have a high purity of emissions.

To ensure the machine's operability, it will be necessary to reflash the control unit to the Euro-2 or Euro-3 standard firmware, but more on that later.

Deception of the oxygen sensor lambda probe: cost and quality

As for the cost, for lambda snag has a different price category. This largely depends on the quality of workmanship, brand, model. The metal spacer will be an order of magnitude cheaper than its digital counterpart. Also, the domestic brand has a low cost in comparison with the foreign version.

The question of the profitability of purchasing the product itself is also important. If you buy at a service center, you can get a bonus in the form of a free installation. Buying at a car dealership may seem a little more expensive.

In order for the exhaust system to have a long service life, it is necessary to carry out a systematic technical inspection of the machine. If any malfunctions are detected, react promptly to it. Install only high-quality, original spare parts. Deception of the oxygen sensor (lambda probe) must be installed when replacing the catalyst with a flame arrester. Otherwise, invalid data will be sent to the central control unit.

Major blende failures, e.g. mechanical blende lambda

The most common option is damage to the hull part of the metal sheathing. As a result, the blende of the lambda probe (oxygen sensor) ceases to function properly. The second point: the quality of workmanship, the factor of rejection or the use of a low-grade raw material base. Other breakdowns are of minor importance to overall performance.

Important! When choosing a mechanical spacer, the focus should be on the quality of the thread and its pitch. By default, mechanical lambda snag should have a fine thread pitch. It is used when screwing important connections.

We put a lambda probe snag: the procedure for diagnosing a spacer and an emulator

First of all, you need to know that any prophylaxis should be carried out in a service center with special equipment. The vehicle is lifted on an electric lift and the system is examined for integrity. In the presence of damage, repair work and replacement are carried out.
It often happens that the wire is subjected to mechanical friction and damage. The current stops flowing to the necessary sources. After that, you need to check the pin connector itself, perhaps the connection is loose. Since the blende of a mechanical type cannot be repaired, in the event of a malfunction, we put the blende of a lambda probe in good condition instead of a failed emulator.

If it is the emulator that is malfunctioning, then you need to start the diagnosis by ringing the electrical wiring.

The least common type of breakdown is the failure of the microcircuit itself due to moisture and dust getting inside. In order to prevent this, it is possible to pack the microcircuit in a plastic container.

The number of cars on the planet is increasing every day. The volume of harmful substances emitted by them into the atmosphere increases proportionally. Modern requirements for the environmental friendliness of cars oblige their manufacturers to find solutions to reduce the level of toxicity of emissions.

One of these technological solutions is the improvement of the exhaust gas removal system through the use of a catalyst (catalytic converter) in it - a device designed to neutralize harmful compounds contained in automobile exhaust. However, when this unit fails, our car owners sometimes get "wild delight" when they find out how much it will cost to replace it. Then the ingenuity of domestic auto mechanics comes to the rescue. They have long come up with an alternative to an expensive catalyst. Of course, it's not entirely environmentally friendly, but it's cheap.

In this article, we will look at what a lambda probe snag is, what types of it there are, and also how to make such a device yourself. But first, let's figure out how the catalytic converter works and how it works.

Catalyst

The catalyst consists of a body and a carrier block - a system of metal or ceramic grids. On the grates there is a thin layer of special chemicals that react with harmful compounds contained in the exhaust and neutralize them, converting the exhaust gases into water vapor, carbon monoxide and carbon dioxide. Platinum, rhodium and palladium are most often used as such substances. This, in fact, explains why a catalytic converter is so expensive.

The catalytic converter is the second element of the exhaust system after the front pipe, which removes gases from the engine exhaust manifold. Its additional task is to cool the exhaust and extinguish the burning fuel vapors escaping from the cylinders. By the way, due to the high temperature in the catalyst, exhaust gases are burned out. The oxygen supply required for this is regulated by the vehicle controller, receiving information about its concentration from oxygen sensors.

Oxygen sensors

An oxygen sensor (lambda probe) is a device designed to determine the amount of oxygen in exhaust gases. Its readings are taken into account by the electronic control unit when calculating the proportional ratio of fuel and air in the combustible mixture.

Most modern cars are equipped with two lambda probes. The first sensor is usually mounted on the front pipe or at the front of the catalyst. It is he who is responsible for correcting the fuel mixture. The second lambda probe is mounted behind the catalyst and monitors its operation. If suddenly the catalytic converter fails and has lost the ability to clean the exhaust, the sensor sends an alarm to the ECU.

Catalyst malfunction symptoms

Signs that the catalyst has failed are:

• the appearance on the instrument panel of a burning "Check Engine" icon, indicating an error in the operation of the engine;
• a noticeable decrease in the dynamic characteristics of the car;
• unstable engine operation;
• changing the sound of a running motor;
• increased fuel consumption.

Why does the catalyst fail?

The catalyst, like any other device, has its own resource.

If your car has traveled more than 200 thousand km without replacing it, and then it breaks down, this is natural. But if the car is relatively new, and the catalyst ordered to live a long time, this may be the result:

Troubleshooting methods

If you diagnosed a catalyst malfunction, there are two ways to fix it: buy and install a new catalytic converter, which will be more correct, but expensive, or try to cheat the car controller, which is not entirely correct, but cheap. The second method involves emulating a catalyst, which can be done by:

• flashing the electronic control unit;
• installing a mechanical blende in place of the second sensor;
• making changes to the electronic circuit for connecting the second sensor to the ECU.

All three options are working. Which one to choose is up to you, of course.

ECU flashing

This method is quite effective and consists in connecting a computer to the controller and making the appropriate changes to its software. As a result of such a simple operation, the ECU will not refer to the sensor readings, considering the catalyst to be fully operational. But such manipulations with software can end in total failure, so it is better to entrust this type of work to specialists.

Mechanical snag

A mechanical snag for a lambda probe is the most popular way to fix problems with a catalyst, and it is quite simple. Its essence is to mislead not the electronic control unit, but the oxygen sensor itself (lambda probe). Deception restricts the flow of exhaust gases to its working element. Accordingly, the oxygen concentration increases.

This is achieved by installing a special spacer (blende) between the catalyst and the sensor. The second lambda probe is then moved further away from the catalytic converter. What does it do? The lambda probe spoiler has a narrow central hole (about 2 mm), passing through which the exhaust gases lose concentration. The sensor, moved away from the catalyst, analyzes the amount of oxygen in the exhaust and, "taking everything at face value", signals the controller that everything is in order here.

How is a mechanical snag of a lambda probe made by hand?

You can buy the described device today at any car dealership or on the market. But for a person with skills in turning, making it is a piece of cake. The mechanical snag for the lambda probe is made of bronze or heat-resistant steel. It is enough to grind a cylindrical blank, drill a hole in it and cut the appropriate thread: to screw the device into the catalyst housing and screw the sensor into it. It is noteworthy that they are universal, that is, the Opel lambda probe blende, for example, is no different from the Audi or VAZ blende.

Installation of the device is also not particularly difficult. It is only necessary to unscrew the oxygen sensor, screw the sleeve into the hole, and into it the lambda probe.

Electronic variant

Now let's talk about how the electronic snag of a lambda probe is made with our own hands. For those who are friends with a soldering iron and distinguish a capacitor from a resistor, it will not be difficult to emulate a working catalyst electronically. The schematic diagram of the lambda probe blende is very simple. It includes only the two mentioned radio components: a 1 μF non-polar capacitor and a 1 MΩ resistor. In addition, we need a soldering iron, rosin, solder and a knife.

First you need to find the connector on the wires going from the second sensor to the controller. It can be located in the tunnel between the front seats, in the engine compartment, or under the dashboard, depending on the make and model of the vehicle. Keep in mind that the electronic blende of the second lambda probe is installed in front of the connector, on the side of the sensor.

Usually the sensor is connected to the ECU with four wires: blue, white and two black. We do not touch the latter. We cut the blue wire, strip it from the insulation and solder a 1 MΩ resistor into the gap. To its end, from the side of the controller, we solder one of the capacitor leads (no matter which one, it is non-polar). Solder the second lead to the white wire.

At the end of the work and checking the operation of the emulator, it is better to fill all its parts with epoxy resin in order to avoid short circuit or damage.

What to do with the catalyst

Even if you got rid of the constant burning "error", excessive fuel consumption and instability in engine operation due to catalyst emulation, do not forget that you cannot leave it in this state. A melted or clogged catalytic converter will definitely interfere with the removal of exhaust gases, creating serious resistance to them. This will naturally affect engine performance.

What to do? There are two solutions here: remove the catalyst, remove (knock out) the carrier block from it and install it back, or purchase and put in its place a stronger (flame arrester). In the first case, you will not spend a penny, but the sound of a running engine will increase significantly. If you install a flame arrester, the sound will increase slightly, and its design will additionally allow you to cool the exhaust gases before they enter the muffler.

The efficiency of a car engine depends on the quality of combustion of the gas-air mixture. The exact proportions, and accordingly the rational effect of work, are regulated by an oxygen sensor - a lambda probe. Understanding the design and principle of operation of the device is necessary for self-determination and correction of defects. The safety of operation of your own car depends on how quickly the causes / consequences of a malfunction of the lambda probe are identified and eliminated.

Only vehicles with injection engines are equipped with the sensor. Location in the exhaust pipe after the catalytic converter. A dual configuration oxygen sensor can be located upstream of the catalyst, providing enhanced control over the gas composition, thereby enabling more efficient instrument operation.

Operating principle:

• The electronics of the car, which is responsible for the dosage of fuel, sends a signal about the demand for supply to the injector.
• Accordingly, the oxygen device determines the right amount of air to form the correct mixture.
• The settings of the device allow you to comply with the requirements for the environmental and economic component of the issue of operating a car - to exclude excessive consumption of fuel and gas pollution of the environment.

Modern cars are equipped with advanced devices - catalysts and paired sensors - that help reduce the negative effects of exhaust emissions and the consumption of expensive fuels and lubricants. However, in the event of a breakdown of an expensive version of the sensor, "treatment" will cost a considerable amount.

Lambda probe design

Externally, the device looks like a steel elongated body-electrode with output wires and platinum-plated. Internally, the device is as follows:

• A contact that connects wires to an electrical element.
• Dielectric seal for safety with air inlet.
• A hidden zirconium electrode enclosed in a ceramic tip, heated under current up to 300-1000 degrees.
• Protective temperature shield with exhaust gas outlet.

Sensors can be point-to-point or broadband. The classification of devices does not affect the external and internal structure, however, it has a significant difference in the principle of operation. The device described above is a two-point one, the second is an upgraded version.

More about him:

In addition to the two-point design, the sensor also contains an injection element. The meaning of the work is that when the constant voltage between the electrodes fluctuates, a signal is sent to the control unit. The supply of current to the pumping element is increased or decreased, a portion of air enters the analysis gap, where the level of concentration of exhaust vapors is determined.

Symptoms of a malfunction of the lambda probe

Eternal, created by human hands - does not exist. Any technique designed for subtle analysis can fail for many reasons. Oxygen sensors are no exception.

Let's consider in detail:

• Increased CO level. Determine the concentration yourself, perhaps only with the help of instruments. Almost always, the indicators indicate a malfunction of the probe.
• Increased fuel consumption. Injection vehicles are equipped with a display indicating the amount of fuel consumed. Also, the increase can be judged if the refueling frequency exceeds the usual one.
• The light signaling, oriented to the operation of the lambda probe, is constantly on. This is the Check Engine light.

In addition to the described signs of destabilization of the oxygen sensor operation, the quality of the exhaust gas can be assessed visually - light smoke indicates air oversaturation in the mixture, clouds of thick black smoke - on the contrary, excessive fuel consumption.

Reasons for the breakdown of the oxygen sensor

Since the device directly works with fuel combustion products, the quality of its (fuel) cannot but affect the productivity and result. A combustible product that does not meet all established GOSTs and regulations often serves as the primary reason why the sensor does not show reliable results or, in general, fails. Lead is deposited on the surface of the electrodes, making the lambda probe insensitive to detection.

Other reasons:

• Mechanical failure... From vibration and / or active operation of the car, the sensor body is damaged. The device cannot be repaired or replaced. It will be much more rational to purchase and install a new one.
• Incorrect operation of the fuel system... Over time, the soot formed as a result of incomplete combustion of the fuel settles on the housing and gets inside the inlet holes of the probe. The readings become incorrect. The problem is initially stopped by timely cleaning, however, if it occurs constantly, then it will not be possible to get rid of it - the oxygen sensor is a consumable part that must be replaced in a timely manner.

In order to achieve the serviceability of the car at all its nodes, it is important to send your own "horse" for periodic diagnostics to identify problems. Then, the functionality of the devices, including the lambda probe, will be preserved.

How to independently check the lambda probe for serviceability

Only qualified diagnostics can give a reliable result about the cause of the breakdown. However, it is possible to understand that the sensor is faulty on your own. For this:

Learn the manual. The supplied instructions for the device contain the parameters of the oxygen sensor. It is important to focus on them.

• Having opened and examined the engine compartment, they find the probe. External contamination in the form of soot and / or light deposits will indicate lead deposition and abnormal fuel system performance. In this case, the device is completely changed and other parts of the car are diagnosed, since the ingress of dirt and heavy metal on them does not bode well.
• If the tip is clean, continue the test. For this, the sensor is disconnected and connected to a voltmeter. The car is started, increasing the speed to 2500 / min and reduced to 200. The readings of the working sensor vary in the range of 0.8–0.9 watts. Lack of response or lower values ​​indicate a malfunction.

You can also check the probe using a lean mixture, provoking a suction in the vacuum tube. In this case, the voltmeter readings with a working device are low - up to 0.2 W and below.

The dynamic indicators of the 0.5 W sensor connected to the fuel supply system in parallel with the voltmeter indicate the serviceability of the device. Other values ​​will indicate a malfunction.

DIY oxygen sensor trick

By avoiding delaying regular maintenance - in particular, for a lambda sensor, it occurs every 30 thousand km - the owner of the car ensures uninterrupted operation of the device. After 100 thousand km, he needs a complete replacement.

If everything is in order with a conscientious attitude to the car, then it will not be possible to control the quality of the fuel. As a result, carbon deposits or lead deposits will cause the Check Engine light to keep responding. So that the car owner does not bother with this, the problem is solved with the help of a trick.

Types of structures

Depending on the financial capabilities, they make bronze parts of the spacers with their own hands, buy technological electronic options, and arrange the flashing of the entire control unit. Let's describe each method in detail:

Homemade device

The body is a bronze piece with high resistance to temperature. The dimensions are strictly matched to the sensor in order to avoid the leakage of exhaust fumes. The hole for their exit into the spacer is no more than 3 mm.

The principle of operation of the device is as follows: ceramic chips inside the cylinder, covered with a catalyst layer under the influence of exhaust gas and oxygen, is oxidized, which causes the concentration to decrease, and the sensor takes the value as normal. The budget option, however, is unacceptable for cars of a high price category - in the end, the automation should work for the result.

Electronic snag

Experts in soldering circuits can "bungle" a snag for an oxygen sensor with their own hands. This requires a capacitor or resistor. The motorist, whose knowledge is limited, cannot use the method - a lack of understanding of the processes threatens to negatively affect the entire control unit. To resolve the issue, a ready-made structure is purchased. The principle of operation of the emulator with a microprocessor is as follows:

• The microcircuit evaluates the gas concentration and analyzes the signal from the first sensor.
• After that, it generates an impulse corresponding to the signal from the second.
• As a result, average readings are obtained that do not affect the normal operation of the control unit, since the input value is always less than the critical value.

Flashing

To deceive the oxygen lambda sensor, possibly with the help of a cardinal flashing of the control unit. The bottom line is that there is no reaction to the signal after the catalyst - the sensor reacts only to the state of the unit installed in front of the catalyst, that is, where exhaust vapors are absent or present in a small amount that does not affect the analysis result.

Attention! Warranty services will refuse to do the work, since this contradicts the normal maintenance of the car - any unit must work and respond to emergency situations.

This is especially true for new cars. Therefore, the firmware is purchased independently - in no case via the Internet - or installed by home-grown craftsmen. Otherwise, the damage caused to the car in the future should not cause bewilderment to the owner of the car.

Video review of deception

Determine the malfunction of the lambda probe video

​

Nowadays, almost every car is created with electronic control systems. They help to achieve a small reduction in fuel consumption, and are also good helpers in the normalization of engine operation. The part we are disassembling today is responsible for the gas exhaust systems. A broken lambda probe forces the engine to do its job in emergency mode. Cope with this problem has long been helped by the lambda probe snag. You can buy it or make it yourself. Today we will just analyze how the lambda probe snagging is done with our own hands, and we will also find out some useful information on this topic. Let's start.

How does a lambda probe work?

What does this detail actually do? This sensor helps to convert the amount of oxygen in the exhaust gas into a signal. This signal should be periodically transmitted to the controller (control panel) and compared with the indicators that are in its data.

WATCH THE VIDEO

If the indicator in the data stored in the controller does not coincide with the indicator that was received at the moment, the control unit must begin to solve this problem by increasing or decreasing the length of the mixture injection into the combustion chamber. By the way, as many as two probes are often installed so that when one fails, use the other. What does the work of these parts generally affect? There are some pretty important aspects:

• Maximum engine performance;
• Fuel economy;
• Reducing air pollution by reducing emissions.

What happens when a catalyst sensor fails?

Usually, a lambda probe breaks down after a hundred thousand kilometers. This is the average maximum wear limit of the sensor, after which its replacement must follow, since it is not possible to repair it.

In case of a breakdown of the lambda probe, an emergency inscription "Check Engine" is displayed on the dashboard screen. Of course, there is still a possibility that the device is simply not working properly, however, most likely, it needs to be replaced, the cost of which is quite an impressive amount. Of course, you can follow the instruments in the car very closely and thirty thousand kilometers. to do sensor diagnostics, but it will still help for a little while. And this is where the lambda probe snag comes into play.

How can snag help us?

Spoofing the catalyst sensor does much the same thing, but at a significantly lower cost. This device allows the engine to ignore faults and operate in its normal standard state without triggering an alarm.

What are the varieties of lambda probe emulator?

Standardly, a do-it-yourself lambda probe emulator is done in three different ways:

• By installing a mechanical sleeve;
• By connecting a special electronic circuit;
• Reflashing the controller.

We will analyze each of them in detail so that you can choose the one that is more convenient for you. Each of the methods is effective in its own way.

Option one: mechanical blende probe with drawing

As you already understood, you will have to make this part yourself. To do this, you will need several materials:

• Bronze or steel billet;
• Screwdriver;
• Processing machine;
• Keys in a set.

Our bronze mechanical lambda probe is made on a lathe. When making, be sure to check the drawing, as it indicates the very shapes and sizes necessary to create a high-quality and suitable sensor. Here is a detailed diagram of a do-it-yourself catalyst trick.

The installation of the manufactured part must be started by lifting your car onto the overpass. Further, the "minus" on the battery must be turned off, after which the probe and the lambda probe located in front of the exhaust pipe are unscrewed. It is also important to unscrew the sensor.

Following the photos, screw the probe onto the sleeve and put our snag on the controller sensor. Now you can put everything in its place, turn on the battery and check the result.

Option 2: lambda probe as an electronic circuit

Electronic snag for a lambda probe is already a more expensive and complex option, but more optimal. As we have already said, the sensor sends signals to the controller, which can be changed by connecting a special blende circuit to the wires. But first you need to make it. To do this, you will need:

• Soldering iron and a special thin nozzle for it;
• Knife;
• Rosin;
• Capacitor 1 μF;
• 1 MΩ resistor.

In the manufacture of the device itself, this circuit of the electronic trick of the lambda probe will help you.

When installing it, you again need to disconnect the minus from the battery, after which it is important to isolate the connections. Usually, for this, the blende is placed in plastic and poured with epoxy glue.

You need to connect it to the wires going from the sensor to the connector. The place where you need to install the snag is different for each car, so trust the torpedo, the engine compartment and the tunnel between the seats.

Third option: flashing the controller

Sometimes the sensor itself is decided not to change, but the controller itself is reflashed. This is a rather convenient option, because for some, making a blende for the second lambda with their own hands is an impossible task, since there are not enough suitable materials.

To do this, you just need to change the algorithm of the computer's actions. However, this is a rather time-consuming business that requires knowledge, because if you configure it incorrectly, you will get a faulty computer. The factory firmware of the controller is much more expensive than replacing the lambda probe, so you should entrust the work to a professional. But buying firmware on the Internet or on the market is highly discouraged, because there is a high risk of being caught by scammers.

What can be the result of the installation of various tricks?

Of course, all our actions have consequences, and an incorrect trick for 1 lambda probe can lead to the most unpleasant consequences. What can go wrong after improper self-installation of the appliance? Here are some really common options for what could go wrong:

• The rest of the sensors will be damaged;
• The performance of the engine will be impaired due to a broken regulation of the injection of the mixture into the combustion chamber by the controller;
• The tightness of the electrical wiring will break and the controller itself will be damaged, which will break the operation of the on-board computer.

WATCH THE VIDEO

It is in order that such problems do not happen, consult with the master if you do not have the proper experience. Also, do not order trickery yourself on the Internet and do not buy in the markets. Better to cook yourself or follow the work of the master.

Modern requirements for the operation of vehicles require the implementation of measures for environmental safety. For this, auto manufacturers were obliged to provide for the installation of special devices in the production of cars that can reduce the amount of hazardous chemicals released into the natural environment.

Most cars are equipped with catalysts that minimize the concentration of nitrogen and carbon in the exhaust gases by changing their chemical composition and burning them. An indispensable element of the catalyst is a lambda probe or, as motorists like to call it, an oxygen sensor.

Thanks to his data, the electronic control unit of the car completely took control of the amount of fuel and air in the outgoing mixture, because the amount of harmful emissions depends on the degree of its combustion.

Today, the oxygen sensor is an integral part of the car. With prolonged operation of the vehicle, a deterioration in the performance of the catalyst may be observed, as a result of which it will be necessary to replace it with more expensive models. The most profitable solution in this case is to make a lambda probe snag.

• Open the engine compartment, find the catalytic converter and the probe. Examine its surface. If it is covered with soot or a light coating, this indicates poor performance of the fuel system. In this case, the part must be completely replaced with the diagnosis of important vehicle components.
• If the part is clean, check the accuracy of the oxygen sensor reading. Start the car with a gradual increase in speed to 2500 / min and lower it to 200. In working condition, the sensor readings should fluctuate within 0.8-0.9W. The absence of any reaction or incorrect data are indicative of a malfunction of the probe.

Reliable information about the malfunction of the catalyst or lambda probe can only be provided by diagnostics in a specialized center.

In order to save money on the purchase of new equipment, we will consider the main options for emulators to make and install lambda snag on our own. Today, there are a great many on the Internet resources, where emulator schemes are reflected. Only knowledge and patience are required from motorists.

Types of bogus

1. Mechanical.
2. Re-flashing sensors.
3. Electronic.

Mechanical blende option

The part is made of high quality heat resistant steel or bronze. The dimensions of the part must be observed with particular precision. The shapes and sizes are shown in the diagram. According to the drawing, a hole is drilled in the inner part, which should be very thin. It is necessary for gases to escape through it.

Operating principle

As a result of the oxidation of gases with ceramic chips, the indicators of harmful substances decrease, which cause oscillations of the sinusoids of the transmitted signal. Due to this, the control unit perceives the operation of the device as normal, which means that the emulator has fully confirmed its operability.

Installation

Any car enthusiast can install the sensor. To do this, you need to find a lambda, unscrew it and screw the blende probe into this place. After about 30 minutes, remove the negative terminal from the battery, which will reset the system and turn off CheckEngine on the dashboard. After the performed manipulations, reconnect all the contacts. Installation completed.

Oxygen sensor flashing

This implies the complete removal of the oxygen sensor and the necessary changes in the control program. In order to do a flashing, certain knowledge and qualifications are required, since the incorrect implementation of it can cause irreparable harm to the entire system.

The danger is that if the actions are performed incorrectly, it will be very difficult to restore the previous operation of the control unit. The original factory firmware is very expensive, and it will be very difficult to get it. Therefore, it is better to immediately entrust this work to specialists.

Electronic lambda snag

One of the most complex devices, which is characterized by increased work efficiency. Electronic sensor readings are the most accurate. The specified emulator, unlike others, is small in size, in which there is a microprocessor that converts the incoming signals into a catalyst similar to the original serviceable one.

For motorists with limited knowledge of mechanics, the best option is to purchase a finished structure and install it in place of the original one on their own. When a signal is received by the microprocessor, the device analyzes by processing the signal from the first lambda probe. After the measures taken, an output signal is generated, which should be similar to a serviceable catalyst.

Installing a lambda probe trick

This requires a soldering kit and a capacitor. The procedure is as follows:

1. Disconnect the negative terminal from the battery.
2. Locate the signal wires to which the capacitor will be soldered (there is no voltage current in the signal wires).
3. Cut the blue wire and strip the white wire, but leave it intact.
4. Solder the capacitor between the blue wires and the stripped white wires according to the drawing.
5. Connect the terminal to the battery and start the car.

The details of the installation of the electronic trick are described in the drawing.

Deceiving a lambda probe with your own hands allows you to save the car owner from many unpleasant catalyst problems and save your budget. The choice of the type of probe depends entirely on your capabilities and desires.

Before installing any type of trickery, you should familiarize yourself in detail with the possible consequences, since all work involves a certain risk.

The main types of possible malfunctions

• malfunctions of the power unit resulting from improper adjustment of the on-board computer injection
• damage to electrical wiring that is the result of improper soldering
• malfunctions of the on-board computer, leading to incorrect data display
• damage to sensors

Any inaccuracies in the work with electronics can lead to the operation of all equipment. Therefore, you should not experiment and save money on your car by buying lambda decoys through questionable Internet sites. Try to do everything yourself, with strict adherence to the recommendations and the device will thank you for this.