Oxygen senor lambda simulator 

 Intended purpose 

Emulator (electronic simulator), usually
is to be installed after catalyst removal or in case of failure of the rear lambda probe (sensor)
B * S2. The emulator processes the signal that comes from the lambda sensor. This
microprocessor device generates signals for the correct operation of
the engine control system in conditions when the catalyst is removed or defective. A converted signal from the emulator
in such a form as from a serviceable catalyst converter
is sent to the electronic control unit (ECU) input. Thus, the ECU considers that the automotive catalyst
works properly and its replacement is no longer required, it is replaced by a casing catalyst
or a flame arrester (Stronger).
The emulators offered by us are a fully operational device and have a waterproof casing filled with compound. Emulators are supplied configured by default.
This lambda sensor emulator is suitable for all types of cars. When buying it, a guarantee for the re-sult of 2 years is provided. It is possible to adjust the parameters without a computer - with a magnet.
In order to ensure compatibility with all the petrol cars, we produce 4 types of emulators: SK-02, SK-06, SK-07, SK-08. You can choose the emulator by the brand of the car at the top of the page. Almost all emulators have the ability to adjust (if necessary) to achieve the best result, for example, to save fuel or on “complex” cars. 

Why the catalyst emulator?

The emulator offered by us, in addition to the replacement of the catalyst in all technical parameters, allows to achieve the following advantages:

• Replacement of the catalyst with the emulator will permanently solve the problem with the catalyst converter, the price of which sometimes would be higher than 1000 euro, besides its replacement is required every 100-150 thousand km;
• On vehicles with Euro 4 standards and above the quality of the prepared fuel blend depends on the efficiency of the catalyst (the fuel supply is corrected on the rear lamb-da). Therefore, the maximum possible economy is achieved only with our emulators;
• the “Check Engine” signal no longer lights up, the P0420 off error will never appear as the engine is running in optimal mode; о you will not need to purchase an expensive converter and no need to repair the catalyst (replacement). This electronic device will help you to forget about this problem;
• by purchasing an universal catalyst, you risk to waste money, because it is not a fact that this device will cope with its task, especially if it is installed for cars of the last years of release. In ad-dition, the catalyst emulator is much cheaper than a universal automotive catalyst; 
• work efficien-cy. On some cars Lambda probe 2 participates in the process of formation of the fuel mixture and affects its consumption. When the catalyst fails, the engine is automatically put into emergency mode, increasing the fuel consumption up to 15%. Removing the catalyst and installing the lamb-da probe emulator prevents such consequences; о the warranty for the emulator is two years;
• an adequate price of lambda sensor emulator at excellent quality, which allows us to provide a warranty of 2 years.

Why is the catalyst is so short-lived?

The catalyst (catalytic converter) is a device in the exhaust system of the car, which con-tains a small honeycomb structure covered with a thin platinum-iridium alloy, thanks to the which oxidizes gases and the burning of unburned fuel.
The main reason that causes the catalyst converter malfunction (in some CIS countries for example) is the poor quality of petrol. The combustion process of low-quality gasoline is slowed down, so the fuel-air mixture in the engine does not burn wholly, its remains burn directly above the surface of the catalyst. Since the catalyst has a honeycomb structure, this one is going to melt over the time and clog, so an additional barrier to exhaust emissions is created, which reduces engine traction.
However, this is not the worst thing. Once the engine is stopped, one of the valves of the gas dis-tribution system in the cylinders remains open and the excess pressure in the system prevents the ex-haust gases from coming out. The exhaust gases, together with the ceramic particles from the catalyst, can return to the engine and settle in the combustion chamber and on the piston, mixing with the oil. As a result, an abrasive mixture is formed, which significantly accelerates engine wear.

The main reasons for catalyst failure are:
1. Additives in gasoline;
2. Low-quality fuel;
3. Unbalanced fuel-air mixture (often failure of lambda sensor);
4. Mechanical damage of the catalyst;
5. Ignition misfire (malfunctioning of the ignition system);
6. Natural wear of the catalyst (life cycle in normal operation - up to 100,000 km). New catalyst not ser-viceable, clogged catalyst.

New catalyst	Broken, plugged catalyst (There is a new one above in order to compare)

 How to determine the breakup of catalyst?

There are three main causes of catalyst failure - loss of catalyst efficiency, destruction and reflow.
To check for reflow, place the pressure gauge in the place of the oxygen sensor and measure the pressure in the exhaust system. If the pressure exceeds 0.5 bar (Kg/cm2) in different operating modes, the catalyst converter is melted.
If the reading of the lambda sensor before and after the catalyst coincides, it means that the catalyst has lost its emission ability (efficiency).
The efficiency of the catalyst can be tested in another way. Warm up the motor (half of hour driving). After that, use the hot air gun (pyrometer) to check the temperature at the weld joints before and after the catalyst, if the temperature behind the catalyst is the same or low-er, the catalyst is defective. In case when there is something inside the catalyst, it is necessary to take urgent measures. Other-wise, the fragments inside could damage the engine.

Frequently Asked Questions

1. Is it really working? - Yes, we give a guarantee for the result of 2 years. In the set altogether with the emulator you will receive a manual and a warranty card. The law also gives the right to return the goods within 2 weeks without explanation.
2. Will I be able to get support? - Yes, you can consult by phone, Skype or e-mail. All the issues could be solved.
3. What emulator is needed for my car? - At the top of this page there is a form of emulator selection by car.
4. Where can I install the emulator? - With our representatives. Any automotive electrician will also be able to install it.
5. My rear lambda sensor doesn’t work. Can the emulator get around it? - Yeah, it may happen on all cars. If the front lambda is broadband, with a current signal (AFR, LAF sensor), then the SK-08 emulator is installed. If the rear probe is faulty, the signal for the emulator is taken from the front probe. If in the rear lambda sensor is defective the heater, then instead of the heater is additionally connected a ground-ing resistor of about 10 ohms and power of 10 W. But on many cars this function is performed well with a light bulb or resistance of even 75 ohms and with less heating.
6. Is it possible not to remove the catalyst? - Its possible if its mechanically whole (not melted, does not ring, motor traction is normal) and front lambda with signal 0... 1 volt (exceptions in the previous question). The reference signal for the emulator in this case is taken from the front lambda.
7. Is it necessary to put a flame arrester? - Not necessary, but desirable. It only affects the exhaust sound. Without a flame arrester exhaust will not get burned quickly (common opinion), because after a good catalyst the temperature is always higher than before. We drove in earlier times without a catalyst...
8. Will the cost decrease after installing the emulator? - If you have an overcharge now, it should be reduced. On Euro 4 and 5 cars, the rear lambda feels in the preparation of the fuel mixture and the con-sumption directly depends on the condition of the catalyst. On Euro-3 and lower vehicles, the consump-tion may be reduced by switching the engine from the emergency mode to the normal mode. Consump-tion can also decrease if you had a melted catalyst.
9. Why is the emulator better than software removal? - The car continues to drive on the factory pro-gram, no interference in the engine control unit is made. Illiterate software removal can lead to the fact that the malfunction lamp on the dashboard will never light up at all, which means untimely troubleshoot-ing could lead to an engine conk out. With software removing, the engine may change operating modes and no one knows how it will affect it.
10. I have autogas system installed, and constantly there is an error on the catalyst, nobody can do anything to help me out... - We often face this problem. First of all, you need to try to go on gasoline. If there is no problem on gasoline, the problem is the autogas system. Read more in this article.

Differences of our catalyst emulators

We divided the emulators into several types in order to cover all known cars. Differences of emula-tors in internal algorithms of performance, mixture and execution. We recommend that each emulator to be installed on specific types of vehicles, but this does not mean that it will not work on other cars.
The emulator algorithm is constantly being improved. The last changes in the algorithm are of october 2020.

 How to replace the catalyst with the catalyst emulator

1. Remove the catalyst;
2. Remove its contents;
3. Instead of the catalyst, a flame arrester (stronger) is installed. If you install an empty body, the exhaust sound will be louder;
4. Direct connection of the catalyst emulator (lambda sensor simulator) is performed according to the diagram shown in the figure. The emulator connects to the lambda probe behind the catalyst. The catalyst emulator is powered from the heating circuit of the lambda sensor or from the ignition coil through a red wire (the power is supplied only when the ignition is switched on);
5. Depending on the type of your vehicle, the negative current power is connected to the chassis ground or to negative current signal cable of the lambda sensor.

You can read all the details of the installation and replacement in the instructions.
The blue and yellow wire should be connected to the lambda signal wire break off. On this wire, the voltage is in the range from 0.1 to 1 V.
And this should be the end of the replacement procedure.

Download instructions for connecting the catalyst emulator SK-02 (pdf,
500Kb)
Download instruction for SK-06 emulator
Download instruction for SK-07 emulator

 The video about connecting the SK-02 emulator to European Cars

 How to switch programs to the SK-07 emulator 

Here you can buy a lambda sensor emulator, which extinguishes the error p0420, read reviews, buy an electronic emulator.