On injection systems of engines of VAZ 2108, 2109, 21099 cars, the controller (ECU, control unit) is a device that coordinates the operation of all sensors and systems included in the ECM. This is a specialized mini computer in which an engine control program is installed. Let's consider the applicability of controllers on VAZ 2108, 2109, 21099.
VAZ 2108, 2109, 21099 with engine 2111 without converter, with CO potentiometer (device for manual adjustment of CO content in exhaust gases), until 2001 (emission standards R-83):
— BOSH M1.5.4 (2111-1411020);
- January 4.1 (2111-1411020-22).
VAZ 2108, 2109, 21099 with engine 2111 without a neutralizer, without a potentiometer, but with the ability to electronically adjust CO using a scanner or a technological, plug-in potentiometer, since 2001 (toxicity standards R-83):
— BOSH M1.5.4 (2111-1411020-70);
— January 5.1 (2111-1411020-71);
- VS 5.1 (2111-1411020-72).
VAZ 2108, 2109, 21099 with engine 2111, with neutralizer, one oxygen sensor, gasoline vapor recovery system (EURO-2 standards):
— GM ISFI-2S (2111-1411020-10 (20, 21));
— BOSH MP7.0N (2111-1411020-40);
— BOSH M1.5.4N (2111-1411020-60);
— January 5.1 (2111-1411020-61);
- VS 5.1 (2111-1411020-62).
VAZ 2108, 2109, 21099 with engine 2111, with a neutralizer, two oxygen sensors (control and diagnostic), a gasoline vapor recovery system (EURO-3 standards):
— BOSH MP7.0N (2111-1411020-50).
Notes and additions
— Controllers GM ISFI-2S (2111-1411020-10 (20, 21)), January 4.1 (2111-1411020-22), BOSH M1.5.4 (2111-1411020) are currently discontinued.
More articles on the VAZ injector
Front-wheel drive VAZ cars are very popular in Russia due to their high maintainability, relatively low cost of spare parts, and simple design. But due to the large number of modifications, it is not easy for the driver to understand even the instructions where this or that unit (part) is located, in particular, on the VAZ-21099 car the injector.
Before repairing a car, some parts have to be searched for a long time and painstakingly, thus wasting a lot of time. In this article we will help you figure out where this or that device is located on the VAZ model 21099, and we hope that the information will be to some extent useful to car owners who have just bought a car, or to novice drivers.
Where is the fuel pump located on the VAZ-21099 injector
Removing and installing a gasoline pump (PG) is not a difficult job and does not require extensive plumbing experience or high qualifications. But if you don’t have to look for a fuel pump on carburetor cars for a long time (it is located on the engine, under the hood), then a beginner may not find it on the injector on the first try. Where is the fuel pump located on the VAZ-21099 sedan injector? Let's figure it out step by step:
- we move the front seats in the car forward as much as possible to free up space in the rear;
- open the rear left door of the car, find a small hinge on the rear sofa, which is located at the junction of the “seats” approximately in the middle of the cabin;
- pull the loop up, thereby raising the back of the lower seat;
- under the carpet we see the gas tank flap;
- unscrew the two fastening screws, remove the hatch and find the fuel pump underneath.
How to remake: step-by-step instructions
Before starting work, wash the car thoroughly and remove dust and dirt from around the engine.
We install the bracket in its original place and secure the lines We fix the fuel filter with hoses We install the injection ignition tee in place of the carburetor We dismantle the old carburetor along with the manifold We install the injection manifold in place of the carburetor We install the injection receiver and connect the hoses to it We remove the carburetor ignition module and install the injection one in its place module
Where is the fan relay VAZ-21099 injector
Quite often a problem arises with the Ninety-Nine when the engine fan does not turn on and the coolant begins to boil. If such a malfunction occurs, first of all they check the functionality of the fan itself by applying voltage directly to it from the battery, but there may be other problems.
In order to check the entire circuit, it is important to find where the VAZ-21099 injector fan relay is located, since it is responsible for turning on the airflow. We find this part in the front of the car, on the passenger side, it is installed under the glove compartment, at the passenger’s feet.
The required relay in the picture is indicated by an orange circle, and here you will also find a fuse that blows when the cooling fan is short-circuited.
Where is the starter relay located?
Just like the engine cooling fan, the starter is controlled by a relay, and its malfunction can cause problems:
- when you turn the ignition key, nothing happens, the engine does not show any signs of life;
- When I try to start the engine, clicks are heard, but the starter does not crank.
Finding out where the starter relay is located on a VAZ-21099i car is very simple; to do this, you just need to open the hood of the car and look behind the air pipe of the injection engine; the part you are looking for is shown below in the picture.
Where is the temperature sensor located?
If the temperature sensor does not show on the instrument panel, there is a high risk of overheating the engine, since the instrument panel does not inform the driver about the heating of the internal combustion engine coolant. Of course, the instrument panel or electrical wiring may be faulty, but most often the temperature sensor (DTOZH) on the engine itself refuses to work.
Where is the temperature sensor located on an injection car 099? Of course, you need to look for it in the engine compartment:
- open the hood;
- we find the wiring that is located between the rear of the engine valve cover and the air filter housing;
- where the DTOZH is located can be seen in more detail in the following photos.
Where is the speed sensor located?
The speed sensor (DS) on front-wheel drive VAZ cars reads pulses depending on wheel speed and transmits the data to the electronic control unit (ECU). When braking the engine, the fuel supply is turned off with the help of the diesel engine and the computer, thus achieving more economical operation of the internal combustion engine. If the sensor is faulty, an error code is recorded, gasoline consumption increases slightly, and idle speed decreases, especially during heavy braking. It is difficult to immediately detect where the speed sensor is located, since it is hidden under the air filter housing (AFC).
We find the part we need as follows:
- open the hood of the car;
- Using a 10mm wrench, unscrew the two KVF fastening bolts;
- loosen the clamp of the air “corrugation”, disconnect the “chip” with the wires;
- we take out the KVF, now the sensor has already appeared in the field of view, it is located on the gearbox (gearbox) housing, wires are connected to it, connected using a connector.
The DS can be easily unscrewed by hand, and the plug with wires can be pulled out even after the sensor has been unscrewed (but carefully so as not to damage the wiring during rotation).
Let's sum it up
As you can see, converting an injector into a carburetor and vice versa is a feasible task. The main thing is to have the necessary spare parts and certain skills. We also note that the return from the injector to the carburetor can be considered rather an exception.
Much more often, owners express a desire to replace the outdated carburetor system with a more economical and practical injector. It is also important to understand that the use of new parts for such a modification puts the feasibility of the whole idea in great doubt.
The main problem will be to find and buy an intake manifold, a receiver, a controller, a ramp with injectors, fuel lines, a gas tank with a gas pump, an air filter housing and other necessary elements at a reasonable price. In this case, the cost of installing the injector can actually pay off after some time.
What does water injection into an engine provide, the principle of operation, the main advantages and disadvantages. How to inject water into the engine yourself, available methods.
Adjusting idle speed on carburetor and injection engines. Features of adjusting the XX carburetor, adjusting the idle speed on the injector.
Design and operating diagram of the injector. Pros and cons of an injector compared to a carburetor. Malfunctions of injection power systems are common. Useful tips.
When you sharply press the gas pedal, the engine jerks, jerks and dips appear, the car does not pick up speed: the main causes of the malfunction and diagnostics.
Source
Where is the fuel filter located?
The fuel filter (TF) on the VAZ-21099i is designed to clean gasoline from debris, dirt and various impurities; it is a monolithic structure with a rigid metal body and a filter element inside. The frequency of its replacement is every 20-30 thousand km of the distance traveled, also if the car begins to move jerkily, and diagnostics showed that the fuel pump is clogged.
It’s easy to find out where the fuel filter is located; to do this, you need to install the car on an inspection hole or a car lift. The TF is located on the bottom of the body, next to the rear beam and the gas tank, and is secured with a special clamp, which is tightened with a bolt and nut.
Before you start changing the filter, you need to relieve the fuel pressure, otherwise when you unscrew the fuel fittings, gasoline will splash under high pressure. You can relieve pressure in the line using a special nipple located at the rear of the fuel rail. Before starting such an operation, it is necessary to prepare a plastic container into which gasoline should be poured, then unscrew the safety cap.
To release the pressure, you can use a standard flat-head screwdriver; when you press the nipple valve, gasoline will come out of the system.
After removing fuel from the line, we proceed to replacing the fuel pump.
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- Front spar of the VAZ-2109 - replacement, repair, cost of work The VAZ-2109 is a car that does not have a strong body; iron corrodes quite quickly, and almost all body parts rust. Replacement of the front side member is required […]
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Conclusion
No matter how much debate there is about the “good old” reliability of the carburetor or the progressiveness and efficiency of the injector, in any case, of course, the choice is yours. In order to properly re-equip your machine, at all stages, follow the operating instructions and technical data sheet for each component and unit. Remember that a car is an object of increased danger and thoroughly check every action you take.
Perhaps you have experience converting a VAZ-2109 from a carburetor to an injector? Share your experience with our readers in the comments. Any information and, of course, your personal opinion will be very useful.
Some car enthusiasts (usually owners of domestic VAZ models) often wonder whether an injection engine is suitable for a carburetor car. Let us answer right away that in practice there are a large number of such installations. In some cases, a finished unit can be delivered without significant modifications to the vehicle itself.
The main difficulties are usually associated with the implementation of fuel supply from the gas tank, since on the injector the electric fuel pump is located directly in the fuel tank and pumps gasoline into the fuel rail under a certain pressure. Also, certain difficulties arise in the process of placing and connecting the ECU and other elements, while laying wiring, etc.
Also, many convert an existing engine with a carburetor to an injector. In this case, there is more work, since it is necessary not only to install the necessary elements, but also to perform certain modifications and manipulations with the internal combustion engine itself. We also note that some car owners are also interested in whether an injection engine can be made carburetor.
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One thought on “Location of components and parts on the injection car VAZ-21099”
I have a fan relay on a 2109 injector, located to the left of the one marked in the photo
The Electronic Engine Control Unit (ECU) is the “computer” that controls the entire vehicle system. The ECU affects both the operation of an individual sensor and the entire vehicle. Therefore, the electronic engine control unit is very important in a modern car.
The ECU is most often replaced by the following terms: Electronic engine control system (ECM), controller, brains, firmware. Therefore, if you hear one of these terms, then know that we are talking about the “brains”, the main processor of your car. In other words, ECM, ECU, CONTROLLER are one and the same.
Frequent malfunctions of the VAZ electronic control unit
Considering that the controller is a complex electronic device, failure of the ECU cannot be ruled out. As a rule, the causes of ECU malfunction can be different, ranging from mechanical damage to software failures.
For example, a common cause of breakdowns is overheating or liquid ingress. As practice shows, on the Lada Samara the ECU is located near the heater radiator. It is not difficult to guess that a radiator leak and coolant entering the controller often disables this device.
We also recommend reading the article about what the ELM327 diagnostic adapter is. From this article you will learn about the purpose, functionality, and features of selecting the ELM327 scanner.
Also, voltage surges in the on-board network lead to the fact that individual parts in the control unit burn out, and the memory bank with firmware suffers. For example, this happens if the battery terminals come loose. Also, poor contact with the spark plugs or high resistance of the explosive wires form an electromotive force in the primary winding of the ignition coil. The result is a breakdown of the output transistors of the control unit.
In this case, the check engine light does not always light up on the panel, but the engine malfunctions. In such a situation, when no other causes have been identified, what is needed is not diagnostics of the engine and systems, but professional diagnostics of the car's ECU, which can only be performed by an experienced specialist. Often, after checking, the unit may need to be replaced, since ECU repair is often not recommended.
Operating principle of the controller (ECU)
Throughout the entire operation of the engine, the electronic engine control unit receives, processes, and controls systems and sensors that affect both engine operation and secondary engine elements (exhaust system). The controller uses data from the following sensors:
- DPKV (Crankshaft Position Sensor).
- DF (Phase sensor).
- MAF (instant air flow sensor).
- DTOZH (Coolant temperature sensor).
- TPS (Throttle Position Sensor).
- DK (oxygen sensor).
- DD (Knock Sensor).
- DS (Speed Sensor).
- And other sensors.
Receiving data from the sources listed above, the ECU controls the operation of the following sensors and systems:
- Fuel system (Fuel pump, pressure regulator, injectors).
- Ignition system.
- Idle speed regulator (IAC, IAC).
- Adsorber.
- Radiator fan.
- Self-diagnosis system.
Also, the ECM (ecu) has three types of memory:
- Programmable read-only memory (PROM); Contains the so-called firmware, i.e. a program containing the main calibration readings and engine control algorithm. This memory is not erased when the power is turned off and is permanent. Amenable to reprogramming and chip tuning.
- Random Access Memory (RAM); It is a temporary memory in which system errors and measured parameters are stored. This memory is erased when the power is turned off.
- Electrically reprogrammable memory device (EPROM). This type of memory can be said to be the protection of the car. It temporarily stores codes and passwords for the vehicle's anti-theft system. The immobilizer and EEPROM are compared with data, after which the engine can be started.
Description of "brains"
The VAZ 2114 ECU is an on-board computer of the vehicle, designed to control the main systems of the car. The parameters of the control module affect both the functionality of certain regulators and the operation of the engine as a whole. That is, the importance of this system cannot be denied.
Controller Location
In VAZ 2114 and VAZ 2115 cars, the control module is installed under the center console of the car, in particular, in the middle, behind the panel with the radio. To get to the controller, you need to unscrew the latches on the side frame of the console. As for the connection, in Samar modifications with a one and a half liter engine, the mass of the ECU is taken from the power unit housing, from the fastening of the plugs located to the right of the cylinder head.
Location of the ECU in the Chetyrka
In cars equipped with 1.6- and 1.5-liter engines with a new type of ECU, the mass is taken from the welded stud. The pin itself is fixed on the metal body of the control panel near the floor tunnel, not far from the ashtray. During production, VAZ engineers, as a rule, do not securely fix this pin, so over time it can become loose, which will lead to the inoperability of some devices.
Design and principle of operation
The control unit of the electronic system operates in accordance with the indicators received from the sensors:
- speed;
- detonation;
- lambda probe;
- fuel injection phases;
- crankshaft position;
- throttle position;
- air flow meter;
- antifreeze temperature.
In accordance with the data received from these controllers, the control module controls the following systems:
- ignition;
- adsorber;
- injectors, as well as a fuel pump;
- ventilation and heating system;
- programs for diagnosing vehicle performance;
- idle speed regulator (video author - Evgeniy Vekhter).
As for the device, the control module structurally consists of the following components:
- RAM or random access memory. This module contains basic data about recently identified errors detected by the electronic system in the operation of various components. When the driver turns off the ignition, the RAM unit is updated, causing this data to disappear.
- PROM is the main element of the system; it contains the firmware of the control module. It should be noted that this memory block contains all the necessary data on the calibration of the “four” systems along with the general engine control algorithm. Unlike RAM, EPROM is a permanent memory, so the data stored in it is retained even after the ignition is turned off. If necessary, this module can be reconfigured, that is, reprogrammed, which can lead to improved power as well as vehicle dynamics.
- ERPZU - the primary function of this module is to protect the car. The EEPROM memory contains information from the anti-theft installation - passwords, as well as encoding of the main parameters. Starting the engine will only be possible if the EEPROM successfully checks with the data contained in the immobilizer memory.
Typical malfunctions: their symptoms and causes
What are the signs that indicate a faulty ECU:
- there are no control signals coming from actuators (IAC, flow meter, various sensors, etc.);
- there is no signal for interaction with the ignition system, fuel pump, injectors and other elements;
- when connecting a diagnostic tester, there will also be no connection with the electronic system;
- Burnt contacts and mechanical damage to the device may also be a sign.
What reasons contribute to the failure of the control device:
- electrical circuit shorted or broken;
- improper electrical repairs, during which errors were made, in particular, we are talking about installing or repairing an anti-theft system;
- lighting a dead battery from a car with the engine running;
- a breakdown of the unit can be caused by incorrect connection of the battery terminals - plus instead of minus and vice versa;
- disconnecting the battery contacts when the engine is running;
- moisture on the electronic system module board;
- mechanical damage to the device as a result of an accident (the author of the video about repairing the control module in a garage is the Auto Practice channel).
Types of ECU (esud, controller). What kind of ECUs are installed on VAZ?
"January-4", "GM-09"
The very first controllers on SAMARA were January-4, GM - 09. They were installed on the first models before the year 2000. These models were produced both with and without a resonant knock sensor.
The table contains two columns: 1st column – ECU number, second column – brand of “brains”, firmware version, toxicity standard, distinctive features.
| 2111-1411020-22 | January-4, without DC, RSO (resistor), 1st ser. version |
| 2111-1411020-22 | January-4, without recreation center, RSO, 2nd ser. version |
| 2111-1411020-22 | January-4, without recreation center, RSO, 3rd ser. version |
| 2111-1411020-22 | January-4, without recreation center, RSO, 4th ser. version |
| 2111-1411020-20 | GM,GM EFI-4,2111,with DC,USA-83 |
| 2111-1411020-21 | GM, GM EFI-4, 2111, with DC, EURO-2 |
| 2111-1411020-10 | GM,GM EFI-4 2111,with DC |
| 2111-1411020-20 h | GM, RSO |
VAZ 2113-2115 from 2003 are equipped with the following types of ECUs:
"January 5.1.x"
The following types of hardware implementation are distinguished:
- simultaneous injection;
- in pairs - parallel injection;
- phased injection.
Interchangeable with “VS (Itelma) 5.1”, “Bosch M1.5.4”
| 2111-1411020-71 | January-5.1.1, without dk, with |
| 2111-1411020-71 | January-5.1.1, without dk, with |
| 2111-1411020-71 | January-5.1.1, without dk, with |
| 2111-1411020-71 | January-5.1.1, without dk, with |
| 2111-1411020-71 | January-5.1.1, without dk, with |
| 2111-1411020-72 | Itelma, without dk, with |
| 2111-1411020-72 | Itelma, without dk, with |
| 2111-1411020-72 | Itelma, without dk, with |
| 2111-1411020-72 | Itelma, without dk, with |
"Bosch M1.5.4"
The following types of hardware implementation are distinguished:
- simultaneous injection;
- in pairs - parallel injection;
- phased injection.
Interchangeable with “VS 5.1”, “January 5.1.x”.
| 2111-1411020 | without dk, rso |
| 2111-1411020 | without DC, with (adjustable with scanner) |
| 2111-1411020-70 | BOSCH, without dc, with |
| 2111-1411020-70 | BOSCH, without dc, with |
"Bosch MP7.0"
As a rule, this type of controller is released onto the market and installed at the factory in a single volume. Has a standard 55-pin connector. Capable of working with recrossing on other types of ECM.
"Bosch M7.9.7"
These brains began to be part of the car at the end of 2003. This controller has its own connector, which is incompatible with connectors produced before this model. This type of ECU is installed on VAZ with EURO-2 and EURO-3 toxicity standards. This ECM is lighter weight and smaller in size than previous models. There is also a more reliable connector with increased reliability. They include a switch, which will generally increase the reliability of the controller.
