ECU VAZ 2107 injector: brands, functions, diagnostics, errors

The design of the VAZ 2107 car provides for the presence of a specialized connector, the main purpose of which is to study the technical condition of the vehicle. Today, such devices are manufactured according to the same OBD2 standard. Moreover, the diagnostic connector on the VAZ 2107 of the OBD2 type has been installed since 1995, and before that, cars were equipped with OBD1 type devices. Let's take a closer look at what this device is and what its purpose is in the design of the seven.

About the diagnostic connector on the VAZ 2107

The design of the VAZ 2107 car provides for the presence of a specialized connector, the main purpose of which is to study the technical condition of the vehicle. Today, such devices are manufactured according to the same OBD2 standard. Moreover, the diagnostic connector on the VAZ 2107 of the OBD2 type has been installed since 1995, and before that, cars were equipped with OBD1 type devices. Let's take a closer look at what this device is and what its purpose is in the design of the seven.

Useful video

You can get more information about connecting to the diagnostic connector from the video below:

Any VAZ-2112 car is equipped with a system for self-diagnosis of faults, which can inform the owner about the presence of any fault without visiting a service station.

Such a system works by connecting special diagnostic equipment to it and further reading and decoding errors.

Where is the diagnostic connector located?

The type of device in question, which is also called a diagnostic block, in the design of the 7 and other cars serves to check the condition of the vehicle for errors and malfunctions. After such manipulation, you can decide on the need to repair or replace parts and mechanisms.

Structurally, the connector is a contact connection with a large number of pins. An autonomous source (computer) is connected to this connection, and a test event is carried out using special programs. On the seven, the diagnostic connector is located in the passenger compartment on the passenger side under the glove compartment. By the way, on many car models of domestic and foreign production, the connector is also located in this place.

To connect the computer to the car via the connection, you do not need to disassemble, remove or unscrew anything. The check can be carried out while inside the car, since the essence of this process is to identify errors in the operation of the engine.

Knowing where the connecting element is located, figuring out the connection to the computer will not be difficult. To connect the computer to the car via the OBD2 connector, you will need a special cable with the appropriate plugs (connectors). However, there is an easier way to avoid buying a cable. To do this, you need to connect two contacts in the block so that the ECU displays error codes. Before connecting the contacts, you will need to understand the pinout of the block on the VAZ 2107.

Pinout of contacts of the VAZ 2107 diagnostic connector

It is known what a diagnostic block is and why it is needed in the design of the seven, so if you need to use it, you may need information about the pinout. Pinout is the designation and decoding of each contact. The design of the 7 uses 2 types of connectors - 12-pin rectangular and 16-pin trapezoidal. Determining errors can be done not only using a computer and special programs, but also with your own hands. To do this, you need to know the pinout in order to correctly connect the necessary contacts for test manipulations.

Let's look at what the pinout of each type of diagnostic pad is.

Rectangular 12-pin block

These types of devices were installed on all injection cars that were produced before 2002. Let's look at the designation of contacts:

Trapezoidal 16-pin block

After 2002, domestic cars began to be equipped with trapezoid-shaped pads, on which the number of contacts increased from 12 to 16. Let’s consider the purposes of the main tires:

When you know what the diagnostic connector pinout looks like, it will not be difficult to diagnose the car yourself. Below is a diagram of the design of blocks with 12 and 16 contacts, as well as a plug, with the designation of the main contacts.

How is diagnostics carried out?

To perform diagnostics without special equipment, you will need to perform the following manipulations:

Now that the purpose of the block for identifying errors is known, everyone will be able to independently carry out diagnostic procedures without the need to visit a specialist. After the errors are indicated, you need to decipher them and begin checking the serviceability of certain components of the car. With such a device, the control of which is based on the operation of the control unit, it is possible to quickly identify the presence of faulty sensors in order to prevent serious damage.

To carry out more precise actions, you will need to buy a special wire and use it to connect to the computer. A special program will display all existing errors and failures that need to be dealt with physically.

Source

Checking the sensor without the help of an auto electrician

Checking the throttle position sensor is quite easy, and anyone can cope with such a task, especially since for this you only need a multimeter, and when you don’t have one, a simple voltmeter will do. Next, perform all the steps below.

Turn the key in the ignition and measure the voltage between the slider contact and the minus. Its value should not exceed 0.7 V. Then we open the damper, turning the plastic sector, and take measurements again. Now the device should show more than 4 V. Turn on the ignition completely, after which the connector is pulled out and the resistance between any terminal and the slide is checked.

Now we slowly rotate the sector and observe the indicators of the measuring device. Its needle should also smoothly change its position, and any jumps are a sign of a sensor malfunction. There is a little trick. If you don’t want to disconnect the wires, you can simply pierce them with a thin needle, although it’s better not to be lazy and do everything as expected.

Injector purpose

Installing an injector in the VAZ 2107 made it possible to significantly improve engine performance. Changing the type of fuel system increases the amount of energy that is produced during the combustion of gasoline. Compared to a carburetor engine, a fuel injection system is more efficient in the initial stages, but over time its performance decreases. What does this depend on?

VAZ 2107 injector plays the role of the final element in the fuel system of the car. The air mixture, together with a cloud of atomized gasoline, creates a huge amount of energy. Over time, this atomization may become less effective, the fuel jets will become weaker, and all due to low-quality gasoline.

The main cause of injector failure is poor fuel. Car fuel consists of many chemical components; in addition, various impurities are added to it, which should improve the overall performance of the engine. This factor cannot be ignored, since such gasoline leaves sediment on the walls of the fuel system. The thinnest channels are in the injectors, and it is these devices that suffer first. VAZ 21074 injector has the same problem. During operation, deposits from fuel only accumulate. What needs to be done to stop this?

Pinout OBD1 – 12 PIN (GM12)

Description:

OBD1 (GM12) connector is rectangular in shape, consists of 12 contacts.

Brands and years:

All injection models, except for some models after 2002, which have an OBD-II connector.

Access and location:

Open access. Located next to the ignition switch, partially covered by the steering column cover.

Pinout:

* Connector Keying - A design element of a removable connector that ensures the correct orientation of the plug and socket.

Example in the photo:

Conclusions and their purpose:

Correction of internal control programs (chip tuning)

Chip tuning

Chip tuning, like ECM modification, also involves changing the factory settings of the software in order to eliminate certain errors in the operation of the software. But the ultimate goal of chip tuning is somewhat different, and is to significantly increase torque and obtain maximum performance from the engine.

The cost that a car owner has to pay to obtain additional power is quite high. Often, as a result of chip tuning, fuel consumption increases significantly and the life of the internal combustion engine decreases.

Taking into account the above information, every car owner should know the answer to two questions before adjusting the injector:

РџСЂРёС‡РеРЅС‹ РѕСЂРёР±РєРё P0500

Как отмечалось выше, ошибка P0500 указывает РЅР° проблемы СЃ датч RеРєРѕРј SЃРєРѕСЂРѕСЃС‚Рё. RќРѕ РїСЂРёС‡РеРЅР° далеко РЅРµ всегда кроется RІ SЃР°РјРѕРј датчике . Можно выделкогда будет загораться РѕСЂРеР±РєР° P0500 РЅР° автомоР±Реле:

Стоит отметить, что неисправность датчика SЃРєРѕСЂ ости — гораздо более SЂРµРґРєР°СЏ РїСЂРѕР± лема, нежели проблемы СЃ контактами или электрическо Р№ цепью.

Cleaning and preventing plaque in the system

The injector device is very sensitive to large inclusions in gasoline. If you are using a cheap brand of fuel, be prepared to change your injectors soon. So the first thing you should do for your VAZ fuel pump is change the brand of fuel. The power supply system of the VAZ 2107 should become cleaner; the possibility of plaque formation in the system is still not excluded. Since the flammable liquid in the channels occasionally stagnates and sometimes even freezes, an early breakdown can be prevented only in one way - regular cleaning.

Approximately every 35-40 thousand km it is necessary to carry out preventive cleaning work on the fuel system. You need to wash the channels with your own hands. The performance of the engine will depend on the quality of cleaning. If this procedure is carried out irregularly, then soon you can say goodbye to one injector and look for a new one, and then you will have to change the remaining elements of the VAZ fuel pump.

In 4-cylinder types of injection engines, different intensities of injector clogging are observed. The temperature in the area of ​​cylinders 2 and 3 is always elevated, so sediment accumulation occurs there faster.

A special admixture of polyetheramine is considered a prophylactic agent in such cases. It prevents the accumulation of burning for a long time.

RџСЂРё какккх условвиях диагностЃруется РѕСЂРёР±РєР° P0500

RR»СЏ S„ормванвв РІ памяти SЌР»РµРєС‚СЂРѕРЅРЅРѕРіРѕ блока SѓРїСЂР°РІР »РµРЅРёСЏ РѕС€РеР±РєР° P0500, которая после переда ется РЅР° РґРеагностический сканер, необходимо, чтобы Р ±С‹Р»Рё соблюдены 4 условия, РєРѕС ‚орые Р±СѓРґСѓС‚ вместе длиться дольше 4 секунд:

Если РІСЃРµ эти факторы соблюдаются РЅР° протяжении 4 сеРєСѓРЅРґ Рели больше РЅР° Р°РІС ‚омобиле СЃ автоматической РєРѕСЂРѕР±РєРѕР№ передач, Сѓ РІРѕРґРё Check Engine . РќР° механической РєРѕСЂРѕР±РєРµ RїРµСЂРµРґР°С‡, чаще всего, ошибка Р ґРёР°РіРЅРѕСЃС‚оруется SЃРѕ второго SЂР°Р·Р° , S‚Рѕ есть РІСЃРµ перечисленные SѓСЃР»РѕРІРёСЏ должны быть СЃР ѕР±Р»СЋРґРµРЅС‹ РґРІР° раза РїРѕРґСЂСЏРґ.

Adjustment process

After connecting the laptop to the car’s on-board computer, you have the opportunity to monitor all the parameters of the vehicle in its various systems and see a list of errors that negatively affect the operation of the internal combustion engine. To identify errors, the data obtained in this way must be checked against the basic parameters. In most cases, the program itself indicates a deviation from the norm. If not, then you need to look for the error by its code in the catalog.

After determining the causes of deviations from the norm, errors can be easily eliminated by adjusting certain parameters that affect the operation of the injector.

P0500

Чтобы определить, какой именно датчРеРє дал СЃР±РѕР№, либо Рє акая С‡Р°СЃС ‚СЊ электрической цепи RїСЂРѕР±Р»РµРјРЅР°, нужно выполнить алгоритм действий РїРѕ пошаговой RїSЂРѕРІРµСЂРєРµ. Потребуется обзавестись мультиметром ЃустройсS ‚РІРѕРј для РґРеагностики датчРеРєР° SЃРєРѕСЂРѕСЃС‚Рё . Если S‚акого SѓСЃС‚ройства нет, необходимо взять RїРѕС‚еРЅС†Реально рабочРеР№ РґР° S‚чик СЃ РґСЂСѓРіРѕРіРѕ автомобиля.

Пошаговая проверка выглядит следующим образом:

Первым делом проверяется SЃР°Рј датчик. РћРЅ располагается РЅР° РїРѕРґС€РеРїРЅРёРєРµ ступицы (если автомобиль переднеприводный). Также РѕРЅ может находиться РЅР° РєРѕСЂРѕР±РєРµ RїРµСЂРµРґР°С‡ оли РЅР° Рґ ифференцРеале (если авт омобиль заднеприводный). Как отмечалось выше, датчРеРє RїСЂРѕРІРµСЂСЏРµС‚СЃСЏ путем замены РЅР° рабочРеР№, Р» РёР±Рѕ СЃ помощью спецРеального диагностического РѕР±РѕСЂ SѓРґРѕРІР°РЅРёСЏ;

Р'ажно: Р' зависимости РѕС‚ модели R°РІС‚омобиля RјРѕР¶РµС‚ РѕС‚Р»РёС ‡Р°С‚СЊСЃСЏ ал RіРѕСЂРёС‚Рј RїСЂРѕРІРµСЂРєРё RґР°С‚С‡РеРєР° SЃРєРѕСЂРѕСЃС‚Рё. Рекомендуется предварварительно RѕР·РЅР°РєРѕРјРёС‚СЊСЃСЏ СЃ РёРЅСЃS ‚рукциями RїРѕ S‚ехнкческоRјСѓ RѕР±СЃР»СѓР¶РёРІР°РЅРёСЋ RєРѕРЅРєСЂРµС‚РЅР ѕР№ модели Р° втомобиля, чтобы получить достоверную РѕРЅС„РѕСЂРјР°С †РёСЋ.

Damage diagnostics

How to understand that an injector needs to be replaced, checked or repaired? Even without sensors, you can understand that repair of fuel system elements is required if there are 1 of 2 main signs in models 2107, 21074:

Sometimes it is impossible to determine on your own where the damage is, and only then will diagnostics at service centers come in handy. A blockage can cause quite serious damage to the VAZ 2107 injector, as well as rupture of channels. The pressure that arises inside the system can easily destroy the most fragile parts. Here you won’t be able to fix the situation with your own hands, even if you have a complete diagram of the car at hand. There is only one conclusion - you need to devote a lot of time and attention to cleaning injectors and do it regularly.

Downloading a book

After successfully completing the payment (by any method) and returning to the KrutilVertel store from the payment system website, you will be taken to the successful payment page:
The book you purchased will be in your personal account, from where you can always download it.

Please note that after making the payment, you need to return back from the payment system website to the KrutilVertel website. If for some reason you did not return back to the site and closed the payment system tab with a message about the successful completion of the payment, please let us know - we will send you a letter indicating access to download the book

If for some reason you did not return back to the site and closed the payment system tab with a message about the successful completion of the payment, please let us know - we will send you a letter indicating access to download the book.

ECU firmware

Firmware update of the electronic control unit is an opportunity to expand the capabilities of your on-board vehicle and make its operation more efficient. It must be said that the first versions of programs for firmware (or chip tuning) of the VAZ 2107 appeared back in 2008.

For most G7 owners, software chip tuning is simply necessary, since this operation allows:

ECU firmware must be performed exclusively at a service center and after a complete technical inspection of the motor by specialists. Special service equipment is provided for this procedure. Self-firmware can only be performed if you have experience and modern equipment.

Video: how to flash the ECU on a VAZ 2107 yourself

The VAZ 2107 ECU can be considered a device that will allow you to quickly monitor the operation of all vehicle systems and troubleshoot problems in a timely manner. Of course, there is no particular need to install an on-board vehicle on your car: the “seven” already quite satisfactorily fulfills all the obligations assigned to it. However, the ECU helps the driver to notice malfunctions and wear of mechanisms in time and quickly respond to them.

RљРѕРґ неисправности R'РђР — Р 0500 RїРѕРёСЃРє RЅРµРёСЃРїСЂР°РІРЅРѕСЃС‚Рё.

Если РєРѕРґ неисправности R'РђР — Р 0500 появвился, то для провер РєРё РїСЂРё заглушенном двигателе отсоедините RєРѕР»РѕРґРєСѓ RєРѕРхтактов жгута РѕС‚ датчРеРєР° SЃРєРѕСЂРѕСЃС‚Рё, РІРєР»S ЋС‡РёС‚Рµ зажРегание Рё проверьте напряжение РЅР° контакте 2 колодки жгута. Показания вольтметра должны быть RѕRєРѕР»Рѕ 9 R'.

Р˜Р·РјРµСЂРµРЅРёРµ напряжения выполнять S‚олько S†РёС„ровыРј вольтметром или мультиметром СЃ внутренним SЃРѕРїСЂРѕС‚Ревлением РЅРµ RјРµРЅРµРµ 10 RјРћРј. Если напряжение равно 0Р', то имеет место RѕР±СЂС‹РІ или Р·Р°РјС ‹РєР°РЅРеРµ РЅР° массу РїСЂРѕРІРѕРґРѕРІ 19 РіСЂ. РЎ, 20 РіСЂ. РЎ или неисправен контроллер. Р' случае, РєРѕРіРґР° напряжение равно 12Р′, то также РІРѕР·РјРѕ¶Р¶ Рѕ неисправен контроллер РёР» Рё РїСЂРѕРІРѕРґР° 19 РіСЂ. РЎ или 20 РіСЂ. РЎ замкнуты РЅР° источник RїРёС‚ания.

Если напряжение РЅР° выводе 2 колодки RѕRєРѕР»Рѕ 9Р′, Рё РІ наличие есть бортовой компьютер показ S‹РІР°СЋС‰РёР№ SЃРєРѕСЂРѕСЃС‚СЊ, запустите RґРІРІРіР°С‚ель Рё контрольРSРѕР№ лампой подключенной Rє RјР° СЃСЃРµ, кратковременно, RјРЅРѕРіРѕРєСЂР°С‚РЅРѕ, несколько раз Р·Р° SЃРµРєСѓРЅРґСѓ, RєРѕСЃРЅРёС‚есь вывода 2 RєРѕР»РѕРґРєРё. RџСЂРё этом должна отклоняться стрелка SЃРєРѕСЂРѕСЃС‚Рё СЃРїРёР ґРѕРјРµС‚СЂР°, Р° РїСЂРё наличие бортового RєРѕРјРїСЊСЋС‚ера РЅР° РЅС'Рј SЃРєРѕСЂРѕСЃС‚СЊ должна быть 0. если этого РЅРµ РїСЂРѕРёСЃС…РѕРґ РёС‚, РЅРµ исправен контроллер.

Проверка при помощконтрольной лампы.

Where is the diagnostic connector located?

The type of device in question, which is also called a diagnostic block, in the design of the 7 and other cars serves to check the condition of the vehicle for errors and malfunctions. After such manipulation, you can decide on the need to repair or replace parts and mechanisms.

Structurally, the connector is a contact connection with a large number of pins. An autonomous source (computer) is connected to this connection, and a test event is carried out using special programs. On the seven, the diagnostic connector is located in the passenger compartment on the passenger side under the glove compartment. By the way, on many car models of domestic and foreign production, the connector is also located in this place.

To connect the computer to the car via the connection, you do not need to disassemble, remove or unscrew anything. The check can be carried out while inside the car, since the essence of this process is to identify errors in the operation of the engine.

Location of the connector under the glove compartment

Knowing where the connecting element is located, figuring out the connection to the computer will not be difficult. To connect the computer to the car via the OBD2 connector, you will need a special cable with the appropriate plugs (connectors). However, there is an easier way to avoid buying a cable. To do this, you need to connect two contacts in the block so that the ECU displays error codes. Before connecting the contacts, you will need to understand the pinout of the block on the VAZ 2107.

Pinout

Knowledge of pinouts may be required if a car enthusiast wants to make an adapter for computer diagnostics with his own hands, or if you need to connect without one. Experts recommend buying ready-made devices without the need to make a plug yourself. However, if you do not have such an opportunity, and diagnostics need to be carried out urgently, we will consider two main pinout options used on VAZ cars of various years of manufacture. Until 2002, AvtoVAZ products used the following pinout option:

1. The 4th and 5th pins are GND outputs.
2. Pin 16 – +12 V (power line).
3. The 7th contact is the diagnostic line itself.

Since 2002, the pinout scheme has changed significantly. Now it looks like this:

1. Pin H – +12 V (power line).
2. Contact G – +12 V for the fuel pump.
3. Pin A – GND output.
4. Contact M – diagnostic line.

There is one important note to note regarding this diagram. If you connect the connector without a block, but directly, it is recommended to use the charge from the cigarette lighter as a source of electricity. The peculiarity of this pinout is that contact H is not always routed in the car. The use of G is also not recommended because high frequency current is supplied. This can have a negative impact on the adapter, even to the point of burning it out. However, cases of burning out the fuel pump connector are quite rare. Therefore, if you wish, you can also use this option.

As you can see, the pinout on VAZ cars of different ages is sometimes very different. Therefore, we advise you to look at the registration certificate of your car and find out what year it is made. On older vehicles you will not find the new pinout design as it did not exist yet and on newer vehicles the old design was no longer used.

Reading time

Difficulty of the material:

For fans – 3 out of 5

To diagnose a VAZ 2114, 2113 or update the ECU firmware, car owners, diagnosticians or mechanics need to know the location of the OBD2 diagnostic connector, as well as its pinout and type. To flash the electronic unit or replace it, you also need to know the location of the ECU and the purpose of the pins.

Errors generated by the ECU

The electronic on-board computer is a complex and at the same time very sensitive device. It is considered a kind of “brain” in the design of any car, as it is responsible for all processes occurring in the systems. Therefore, it is very important to periodically diagnose the “well-being” of your “on-board vehicle” so that all the errors it produces are not ignored.

What is an ECU error

As mentioned above, modern control units detect a variety of errors: from a lack of voltage in the network to the failure of a particular mechanism.

In this case, a signal about a malfunction is sent to the driver in encrypted form. All error data immediately enters the ECU memory and is stored there until it is deleted through a scanner at a service station. It is important that active errors cannot be deleted until the cause of their occurrence is eliminated.

Deciphering error codes

The VAZ 2107 ECU can detect several hundred different errors. The driver does not need to know the decoding of each of them; it is enough to have a reference book or a gadget connected to the Internet at hand.

Table: list of VAZ 2107 error codes and their interpretation

Using this table, you can accurately determine the cause of the error signal. It is important that the on-board computer rarely makes mistakes, so you can safely rely on the codes received.

Video: how to respond to a Check error

MY MOTORCYCLE

In this article we will dwell in detail on the operation of injector control units.

1. Why do you need an injector control unit?

A motorcycle manufacturing plant does not have the technical ability to configure fuel maps for each motorcycle that comes off the production line. In essence, a fuel map is a table in which the values ​​of injector opening times are entered in a certain step depending on the throttle opening angle and engine speed. The injector is an electromechanical valve, the opening of which is controlled by the motorcycle control unit. The longer the injector is open, the richer the mixture. The less, the poorer the mixture.

For example, in the memory of the control unit it can be written that at a throttle opening angle of 5% and a speed of 5000 RPM, keep the injector valve open (inject fuel) for 2 ms. Similar values ​​are written in the control unit for all throttle opening angles and for all revolutions with a given sampling step.

The fuel map values ​​are selected by the factory for the first production prototypes, after which the same fuel map with the same values ​​is loaded into all control units.

Unfortunately, even in modern high-precision production there are errors. Just as no two people are alike, you can’t find two identical motors, and not a single completely identical motor comes off the production line. Out of 20 engines, all 20 will have variations in power in different rpm ranges, however, all 20 engines will receive the same fuel map loaded by the factory, which is obviously not optimal.

The operation of the injector control unit, which adjusts the fuel map for the engine, is based on correcting the factory error. The operator, using a special stand for measuring power and a gas analyzer, can enter fuel map corrections into the injector control unit at all throttle opening angles. The injector control unit is a kind of corrector for the factory fuel map.

2. Can the motorcycle control unit itself, based on a lambda probe, make corrections to the fuel maps in such a way as to correct factory errors?

To date, not a single injection motorcycle is capable of adjusting fuel maps on the go. The factory lambda probe used on motorcycles is a narrow-band probe and serves solely to reduce emissions when the motorcycle is idling. This explains the exclusion of the lambda probe from production on racing motorcycles. The knock sensor on motorcycles is also not used due to the high probability of false alarms.

It is true that the injector makes changes to the fuel maps depending on temperature, air pressure and 6 other parameters, but corrections are always made relative to the map loaded by the factory. Thus, the error is always preserved.

In the control unit, at 6000 rpm and 10% throttle opening, the injector opening time = 0.9 ms is recorded. selected by the factory for the first motor prototypes.

But on this instance of the motor, the optimal opening time is 0.92 ms, and the factory 0.9 ms is not optimal.

The control unit has calculated that at the current pressure and temperature the opening time should be increased by 0.05 ms, it adds 0.9 to the table and gets 0.95, but for this motor the table 0.9 was not optimal in advance and the correct value, taking into account the error: 0.92 + 0.05 = 0.97 and not 0.95

As we can see, despite the corrections made by the motorcycle control unit, the error always remains and can be corrected using the injector control unit.

There are two types of injector control units. The first one is connected to the injectors and, in real time, makes corrections to the pulses for opening the injector of the control unit. Thus, the unit can correct the factory map. But it does not do this automatically; the block must first be configured on the stand (or load a map, relying on luck).

The second type of injector control unit is the FIT, the first of its kind. FIT uses an expansion port that allows access to change fuel maps. The motorcycle control unit is programmed in such a way that it can be switched to polling mode of an external device for fuel map correction. Having received data from an external source, the control unit itself corrects the fuel maps loaded by the factory. In fact, FIT tells the control unit the coefficients that the unit uses to temporarily modify the fuel map.

As a result of a simple and innovative solution, it was possible to get rid of power switches, which in devices of the first type (PowerCommander) are a consumer of electricity and dimensions. Therefore, FIT is compact, has low energy consumption, a 5-year warranty and a relatively low cost. Otherwise, FIT produces exactly the same card as Power Commander. We can convert PC cards to FIT and vice versa, and after running the motorcycle on the stand, the results will be 1:1.

3. Other people's fuel cards

There are many myths surrounding fuel cards downloaded from websites. Some users write that the card helped, others - it harmed.

Let's figure out why this happens. Consider a motorcycle with a full exhaust. A full release of a certain model installed on a certain model of motorcycle introduces an additional stable error into the fuel map of the control unit. A map that is no longer optimal becomes even more suboptimal. To correct the problem, the owner of the exhaust purchases an injector control unit and goes to the stand, where the operator corrects the error.

The owner puts the fuel map on the Internet, and another person with a similar motorcycle and exhaust downloads the map from the Internet and then into his injector control unit.

What happens now? The exhaust introduces a certain constant error, but the engine on which it was tuned had its own unique fuel map error. The key word here is unique. If the error of the fuel map of your engine is close to that on which the downloaded map was obtained, you will get a good result. If the error was different, you will worsen the situation and get a negative result.

When loading someone else's map, you always rely on luck. Sometimes it is, and sometimes it is not. Nevertheless, it's worth a try!

4.Power

There is an opinion that the injector control unit increases power. This is true. But it adds power precisely in the rpm ranges where your theoretical fuel map loaded by the factory has the greatest deviations from reality - and this can be any rpm 1-2 thousand before the red zone. At speeds close to maximum, your injectors are almost always open, and in this zone the Japanese engine always operates almost 100% optimally. Factory errors do not play a noticeable role at speeds close to maximum, so none of the injector control units will add peak power to you. However, you will get a very pleasant constant traction without any dips.

5.Autotune

There is an attractive idea of ​​adjusting fuel maps while the motorcycle is moving. Unfortunately, as of 03/07/13 there is no working practical implementation of this idea. All the modules that came into our hands, including AUTOTUNE from PowerCommander, coped with the task only in a narrow range - 2 thousand revolutions before the red zone. In other ranges, blocks worsened the picture.

We hope that with this article we have dispelled some of the myths associated with injector control units. We produce the most compact and reliable FIT injector control unit. The quality and size are determined by a different operating principle - unlike other injector control units, FIT is integrated into the control unit through a special expansion port, which is not occupied on your motorcycle and serves to connect various devices to the control unit, one of which is FIT. As a result, instead of the 18 wires with connectors required to connect units like the PowerCommander, the FIT has only 3 wires.

Basic engine malfunctions

VAZ 2107 cars are equipped with three main types of power units with a displacement of 1.5, 1.6 and 1.7 liters. The second engine is equipped with a distributed injection system, which differs significantly from carburetor engines. During long-term operation, parts and components of the unit are subject to wear, which can cause the following malfunctions:

Diagnosis of injector or ECU malfunctions is carried out using a special tester, which is available at specialized service stations. Repair and restoration work on the engine is classified as complex and requires high qualifications and special skills.

OBD2 pinout – 16 PIN

Description:

The OBD2 connector is trapezoidal and consists of 16 pins.

Brands and years:

Gasoline passenger cars and light commercial vehicles manufactured or imported into the United States since 1996 (US CARB and EPA legislation) and in Europe (EOBD) since 2000-2001 (European Union Directive 98/69EG) and Asia (mainly since 1998). ).

Access and location:

Pinout:

Example in the photo:

Conclusions and their purpose:

Diagnostic connector pins for used protocols

Pins 4, 5, 7, 15, 16 - ISO 9141-2.

Pins 2, 4, 5, 10, 16 - J1850 PWM.

Pins 2, 4, 5, 16 (without 10) - J1850 VPW.

The ISO 9141-2 protocol is identified by the presence of pin 7 and the absence of pins 2 and/or 10 on the diagnostic connector.

If pin 7 is missing, the system uses the SAE J1850 VPW (Variable Pulse Width Modulation) or SAE J1850 PWM (Pulse Width Modulation) protocol.

All three data exchange protocols operate via a standard OBD-II J1962 connector cable.

The correct connection diagram for a 12 PIN block with a 16 PIN adapter

Tags: m7.3

Comments 51

It feels like two cylinders are failing while driving, but after turning the ignition key off on it starts to work normally

I had the same problem. Replaced the ignition unit. And I also changed the wires for the spark plugs. One wire almost fell off there. This is not visible visually, but when I pulled it, it tore without much effort. It helped...

hello dear, please give me a hint VAZ 21 07 inzhetor you pick up speed 90 fifth goes km 2 then there is a loss of power while driving, turn off the ignition key after a second, turn on the car again normally

While walking around a Chinese online store I came across this thing: ELM327 OBDII V1.5 CAN-BUS Bluetooth for $9. The device supports: ISO15765-4 (CAN) ISO14230-4 (KWP2000) ISO9141-2 J1850 VPW J1850 PWM Will this thing work on a VAZ 2107 2008?

Source

P0500

Р' зависимости РѕС‚ того, что вызывает ошибку P0500, Р±СѓРґСѓС‚ SЂР°Р·РЅРёС‚СЊСЃСЏ SЃРїРѕСЃРѕР± С‹ ее устранения.

Если РІ С…РѕРґРµ диагностики выявить RїСЂРѕР±Р»РµРјСѓ РЅРµ RїРѕР»СѓС‡РёР»Р ѕСЃСЊ, возможно, достаточно R± SѓРґРµС‚ просто SЃР±СЂРѕСЃРѕ‚СЊ RѕS€РёР±РєСѓ, RїРѕСЃР»Рµ S‡РµРіРѕ RїСЂРѕРІРµСЂРёС‚С Њ, возникает ли РѕРЅР° РІРЅРѕРІСЊ. R' SЂСЏРґРµ SЃР»СѓС‡Р°РµРІ появление RѕS€РёР±РєРё RјРѕР¶РµС‚ быть вызвано R ІСЂРµРјРµРЅРЅРѕР№ проблемой, Р»РеР±Рѕ RѕS€РёР±РєРѕР№ РІ работе RїСЂРѕРіСЂР°РјРјРЅРѕРіРѕ RѕР±РµСЃРїРµС‡РµРЅРёСЏ.

РљРѕРіРґР° простой СЃР±СЂРѕСЃ ошор±РєРё РЅРµ RїРѕРјРѕРіР°РµС‚, Рё установлеРSРѕ, что неисправность РЅРµ SЃРІСЏР·Р°РЅР° непосредственно S Ѓ SѓR ° RARYRERјP ° С ° С1 ‡ ryrѕhr, Рїysђrґr µ µ їhr їrіr рrіr µ ° Сїrѕr ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° °. No. RARRCYHHIRHRґR ° ° RµS, SRѕS „rѕsђRAR ° C ° ° C † Рѕs‚ датчика Рє РР'РЈ. RS‚Рѕ довольно сложная задача, которая может занять РјР SРѕРіРѕ времени. Потребуется обзавестись мультРеметром Похемой электрической цепи автомобиля. Также РІ С…РѕРґРµ такого СЂРѕРґР° диагностики нужно SѓР±РµРґРёС‚СЊS ЃСЏ, что нет проблем СЃ контактами РЅР° датчике (окислов).

Если проблема связана СЃ датчиком SЃРєРѕСЂРѕСЃС‚Рё, Рё это было Р ІС‹СЏСЃРЅРµРЅРѕ РІ С…РѕРґРµ РґРеР°РіРЅРѕСЃС ‚РёРєРё автомобиля, следует просто заменить его РЅР° РЅРѕРІ ый, поскольку данная деталь РЅРµ SЏРІР»СЏРµС‚СЃСЏ РїСЂРёРіРѕРґРЅРѕР№ для SЂРµРјРѕРЅС‚Р°.

Стоит отметить, что РѕСЂРёР±РєР° P0500 РЅРµ является критичн РѕР№, Р·Р° редким коключением, РєРѕРіРґР° РЅР° СѓСЂРѕРІРЅРµ электронного блока управленмя запрограммирована активация ограничений РїСЂРё ее возннкновении.

Если РІ течение 4 секунд РЅР° прогретом двигателе, температура охлаждающей Р¶ идкости выше 80 РіСЂ. РЎ, обороты коленчатого вала превышают 1600 РѕР±/РјРіРЅ, СЃРёРіР Sал поступающий СЃ датчРеРєР° SЃРєРѕСЂРѕСЃС‚Рё SЃРѕРѕS‚ветствует 5 РєРј/С‡ или менее, Р° параметр нагрузки РїСЂРµРІС‹С€Р°РµС ‚ 3 RјРёР»Рё секунды. Р' оперативную RїР°РјСЏС‚СЊ RєРѕРЅС‚роллера R·Р°РЅРѕСЃРёС‚СЃСЏ РєРѕРґ неисправности Р'РђР — Р 0500. Р' случае, РєРѕРіРґР° неисправность RїРѕРІС‚оряется РґРІР° Рё более драйв- S†Рекла, РЅР° панели РїСЂРёР±РѕСЂРѕРІ Р·Р°РіРѕСЂР°РµС ‚СЃСЏ лампа “Check Engine”.

On-board computer VAZ 2107

An on-board computer is a “smart” digital device that performs certain calculation operations by receiving data from various sensors. That is, the “on-board vehicle” is a device that collects all the necessary information about the “well-being” of the car’s systems and converts it into signs that the driver can understand.

Today, two types of on-board computers are installed on cars of all types:

What kind of ECU is on the VAZ 2107

Initially, the VAZ 2107 was not equipped with on-board devices, so drivers were deprived of the opportunity to obtain operational data on the state of the vehicle systems. However, later versions of the “Seven” with an injection engine are already conducive to installing this device.

Factory models of the VAZ 2107 (injector) were not equipped with an ECU, but had a special socket for the device and connection capabilities.

The injection model of the “seven” has a variety of different electronic components. Any driver knows that sooner or later one of these components may begin to malfunction or fail. At the same time, self-diagnosis of a breakdown in such cases is very difficult - again due to the complexity of the electronic systems of the VAZ 2107. And installing even a standard ECU model will allow you to receive data on breakdowns in a timely manner and quickly fix faults yourself.

How to solve the problem yourself?

If you own a device with the correct firmware version 1.5, where all six of the six protocols are present, but the adapter does not connect to the ECU, there is a way out. You can connect to the unit using initialization strings, which allow the device to adapt to the commands of the machine’s motor control unit. In particular, we are talking about initialization lines for diagnostic utilities HobDrive and Torque for vehicles that use non-standard connection protocols.

As is known, adapters of this type allow connection to the control unit in most foreign-made vehicles manufactured after 1996. So, how to solve the problem on your own?

First you need to connect the adapter correctly:

Diagnostic connector

The ECU on the “Seven”, like on other cars, is also equipped with a diagnostic connector. Today, all connectors are manufactured according to the same OBD2 standard. That is, the “on-board vehicle” can be checked for errors and malfunctions using a conventional scanner with a standard cord.

What is it used for?

The OBD2 diagnostic connector is equipped with a certain number of contacts, each of which performs its own function. By connecting the scanner to the ECU connector, you can carry out several diagnostic modes at once with high accuracy:

Where is

The diagnostic connector on the VAZ 2107 is located in the most convenient place for work - under the glove compartment in the cabin under the instrument panel. Thus, there is no need to disassemble the engine compartment mechanisms in order to connect the scanner to the ECU.

Calculation of codes

Most often, diagnostic program codes are “deciphered” using a special device. However, on VAZs it is not so difficult to do it yourself.

ECU January 4 for VAZ 2110

The diagnosis itself goes like this:

• Connect contact “B”, which has the diagnostic block and “ground”;
• Turn the ignition key to the third position, do not start the car;
• First, the aforementioned “CHECK ENGINE” lamp flashes code 12 three times in a row. It, in fact, does not signal any malfunction, but simply shows that the diagnostic programs are working. On the VAZ 2110 this happens in this order: the lamp blinks briefly once (which should be considered the designation of number 1). After a pause of at least two seconds, it flashes twice in a row (two). So we got the number two. And this is repeated three times so that the driver can understand these signs;
• Now you need to be careful not to miss any faults. After the diagnostic program has declared its serviceability, it will begin to display error codes, if any. In the same way - flashes and pauses.

Errors generated by the ECU

The electronic on-board computer is a complex and at the same time very sensitive device. It is considered a kind of “brain” in the design of any car, as it is responsible for all processes occurring in the systems. Therefore, it is very important to periodically diagnose the “well-being” of your “on-board vehicle” so that all the errors it produces are not ignored.

What is an ECU error

As mentioned above, modern control units detect a variety of errors: from a lack of voltage in the network to the failure of a particular mechanism.

In this case, a signal about a malfunction is sent to the driver in encrypted form. All error data immediately enters the ECU memory and is stored there until it is deleted through a scanner at a service station. It is important that active errors cannot be deleted until the cause of their occurrence is eliminated.

Deciphering error codes

The VAZ 2107 ECU can detect several hundred different errors. The driver does not need to know the decoding of each of them; it is enough to have a reference book or a gadget connected to the Internet at hand.

Table: list of VAZ 2107 error codes and their interpretation

Using this table, you can accurately determine the cause of the error signal. It is important that the on-board computer rarely makes mistakes, so you can safely rely on the codes received.

Video: how to respond to a Check error

RЎРёРјРїС‚РѕРјС‹ РѕС€РеР±РєРё P0500

RњРѕР¶РЅРѕ назвать несколько S‚иповых СЃРемптомов, РєРѕС‚РѕС ЂС‹Рµ SЃРІРёРґРµС‚ельствуют водителю РЅР° РЅР°Р»РёС ‡РёРµ проблемы СЃ датчиком SЃРєРѕСЂРѕСЃС‚Рё, Р° здачит, РЅР° РІРѕР·РјРѕР ¶РЅСѓСЋ РѕС€РеР±РєСѓ P0500:

РќРµ работает антРеблокировочная SЃРёСЃС‚ема автомобиля ( электронный Р±Р» РѕРє управления РїСЂРё налочии проблем СЃ получением онфор мацРеРё РѕС‚ датчРеРєР° SЃРєРѕСЂРѕСЃС‚аавтоматически отключает РђР'РЎ);

Обратите внимание: Если ошибка P0500 имеет место быть, Сѓ аРІС‚омобиля Р· Check Engine.

Если РѕРґРёРЅ РёР· перечисленных выше SЃРёРјРїС‚РѕРјРѕРІ имеет РјРµС ЃС‚Рѕ быть РЅР° автомобиле, СЌС‚ Рѕ РІРѕРІСЃРµ РЅРµ значит, что однозначно имеется ошибка P0500. Нужно проверить автомобиль диагностическим сканером, чтобы убедиться РІ наличии РїСЂРѕР±Р »РµРјС‹ Ременно СЃ датчиком SЃРєРѕСЂРѕСЃС‚Рё.

ECU firmware

Firmware update of the electronic control unit is an opportunity to expand the capabilities of your on-board vehicle and make its operation more efficient. It must be said that the first versions of programs for firmware (or chip tuning) of the VAZ 2107 appeared back in 2008.

For most G7 owners, software chip tuning is simply necessary, since this operation allows:

ECU firmware must be performed exclusively at a service center and after a complete technical inspection of the motor by specialists. Special service equipment is provided for this procedure. Self-firmware can only be performed if you have experience and modern equipment.

Location of relay and fuse boxes

The location of the VAZ 2107 fuses and relays is located in the engine compartment, its article number is 2107-3722020-10. It is in an accessible location. In injection cars, an additional relay and fuse block is installed that serves the engine's electronic control unit. It is located under the glove box.

In cars of early years of production, the main relay and fuse box has a different design and arrangement of elements.

Installing a new adapter

Modern adapters elm 327 with the OBD-II program (puncture) are suitable for the VAZ 2110 . You can also install them yourself. First you need to purchase an elm 327 and a cable for it. You already know the location of the diagnostic connector. Be sure to study the instructions, which indicate the pinout of the block and the location of each connector.

The pad can be removed quite easily. Insert your own cable into each connector of the block, making sure that the pinout of the elm 327 complies with the manufacturer’s instructions. Check that each connector is connected correctly and each cable is in the correct place. After this, the block is installed in its place.

Connecting the diagnostic connector to the block

Fault detection programs for elm 327 can be downloaded on the Internet, many of them in a free version. Now your VAZ is ready to detect errors in various car systems, and you can always download error codes from us.

Connecting the diagnostic connector to the block Connecting the diagnostic connector to the block