In what year did they start producing the VAZ 2107 with an injector?

Post by Denver » 04 Aug 2009, 17:24

ganstown, Carb is no longer made. The first batches of the injector began to be produced at the end of 2004, but the bulk of them went into production in 2005. I remember this well, because I was on a production internship at TyumenAvtoVAZ and we came across an injection “seven” every 3 days and it was unprecedented to look at it “miracle” almost all locksmiths came. Back in the spring of 2004, my dad bought a “seven” carb, then there was no injector, by the way, there were also “nines”.

Added after 4 minutes 30 seconds:

In general, information can probably be found on the official AvtoVAZ website

“Seven” is the latest representative of the VAZ series of rear-wheel drive cars. The seventh model was developed on the basis of the VAZ 2105 and differs in the shape of the seats, interior trim, shape of lighting devices and engine power.

Initially, the VAZ 2107 was equipped with a one and a half liter engine from the VAZ 2103. Subsequently, the range of engines installed on the “seven” was expanded. Cars with engine sizes ranging from 1.45 to 1.7 liters were produced for different markets. It was the 1.7 liter engine that was the first to be equipped not with a carburetor, but with an injection power system. Subsequently, the VAZ 2107 injector completely removed carburetor cars from the assembly line.

The principle of operation of the VAZ 2107 injection engine

Unlike carburetor systems, where the preparation of the air-fuel mixture occurs in the carburetor chambers, the injection system involves injecting fuel directly into the cylinders. Therefore, such a system is called a “distributed injection system”.

Injection systems are qualified depending on the principle of operation and the number of injectors. “Seven” is equipped with a separate injection system with 4 nozzles (one per cylinder). VAZ 2107 injectors are controlled by a microcontroller of the electronic engine control unit. It regulates the flow of fuel into the cylinders depending on the operating mode, the position of the gas pedal and other parameters read by special sensors.

The ECU (electronic control unit) controls the amount of fuel and air entering the engine combustion chambers. In addition, it controls the formation of a spark on the spark plugs, changing the timing depending on the speed. The ECU also turns the fuel pump on and off, regulates idle speed, controls the amount of CO in the exhaust gases, and the temperature of the coolant in the cylinder block. It all works as follows.

Gasoline from the tank, passing through the fuel filter, is supplied by a pump to the fuel rail. The latter has a pressure regulator that regulates the flow of fuel to the injectors. A pressure of 300 MPa is maintained in the fuel rail, and excess fuel is sent to the gas tank through the return pipe.

The electronic control unit opens and closes the injectors, ensuring that gasoline is supplied to the intake manifolds with each engine revolution. The amount of fuel entering the cylinder depends on the time during which the injector is open. The ECU calculates this time based on the readings of many sensors. The main indicators that affect the injector opening time are information from the mass air flow sensor and the throttle position sensor. The opening moment of the injector is determined based on the position of the pistons in the cylinder, which is transmitted to the ECU by the crankshaft sensor.

Other parameters are also taken into account:

• coolant temperature, which affects the combustion process of the fuel mixture;
• on-board network voltage, on which the injector response time depends;
• engine speed;
• exhaust gas composition.

Where is the engine number

Each vehicle model produced at the factory is equipped with an engine with a personal number. So, the engine number on the “seven” is its identification number, which can be used to determine the identity of the stolen car and its history.

The engine number is stamped on the cylinder block on the left side, immediately below the distributor. In addition, the number is duplicated in the summary table, which is attached below the air supply housing. The metal plate contains information about the car, such as model, body number, model and number of the engine unit, equipment, etc.

Advantages of VAZ 2107 injection models

• Due to the optimal formation of the fuel mixture, the efficiency of an injection engine is higher than that of a carburetor. Accordingly, the VAZ 2107 injector engine consumes less fuel and is at the same time more powerful than a carburetor engine with the same volume.
• Electronics regulate engine speed, thanks to which it idles more steadily, stalls less often when starting from a standstill, and starts better in cold weather.
• Unlike a carburetor engine, an injection engine does not require frequent adjustment of the fuel supply and ignition systems.
• The optimal composition and quantity of the fuel-air mixture entering the cylinders, as well as the presence of a catalyst, ensure a minimum content of harmful substances in the exhaust. This is an important point from an environmental and health perspective.
• Hydraulic chain tensioner and hydraulic valve clearance compensators eliminate the need for manual adjustment of the mechanism and ensure quieter engine operation.
• The torque curve is smoother - high torque is achieved over a wider rpm range.

Salon VAZ-21074

The design of all modifications of the VAZ-2107 family (including the VAZ-21074 injector) provides for the arrangement of components and assemblies according to the so-called classical scheme, when the rear wheels are driven and the engine is shifted forward as much as possible, thereby ensuring optimal weight distribution along the axles and, as a result, improving vehicle stability. Thanks to this arrangement of the power unit, the interior turned out to be quite spacious and was located inside the wheelbase, i.e., in the zone of best ride smoothness, which could not but affect the comfort of the car.

The interior trim is made of high-quality non-glare materials. The floor is covered with mats made of non-woven material on a polypropylene base. The body pillars and doors are upholstered in semi-rigid plastic, covered on the front side with caprovelor; velutin is used for seat upholstery. The ceiling is finished with polyvinyl chloride film with a duplicated foam pad, glued to a base formed from plastic. Through the use of various mastics, layered bitumen gaskets and felt inserts:

Disadvantages of the injection model of the VAZ engine

In addition to its advantages, the injection VAZ 2107 has some disadvantages:

• The location of the engine and other units in the engine compartment remains the same as in the old-style “classic”. This makes it difficult to access some parts. However, the injection system is quite reliable, so it does not require frequent maintenance during operation.
• The injection “seven” is equipped with a catalyst, which is easily damaged when driving through obstacles. Therefore, you need to be careful when driving on uneven roads.
• An engine with an injector is more demanding on fuel quality than a carburetor variation. When using low-quality gasoline, the system may become contaminated, requiring unscheduled maintenance of the unit.
• If the injection system breaks down, it will not be possible to repair it and adjust it “on the knee” in a garage. You'll have to go to a service station.

Characteristics of oils for VAZ

The service life of the engine depends on the correct selection of oil for injection VAZ 2107. The recommended quality standard for the lubricating fluid is given by the manufacturer. Any type of oil that meets API SJ/CF, SG/CD quality standards can be filled into the car.

The abbreviation API means that a lubricant meets the following basic criteria:

The letters indicate performance characteristics. The further away the letter is from A, the better the quality of the product.

It is recommended to use the following types of oils.

Malfunctions of the VAZ 2107 injection engine

Problems with the 7 injection engine usually manifest themselves as follows:

• The engine is running erratically.
• Fuel consumption of the VAZ 2107 has been increased.
• There is an increased CO content in the exhaust gases.
• Dips when pressing the accelerator pedal.
• The engine “does not pull” (reduced power).
• To diagnose injection system faults, special equipment is required. In particular, in order to read error codes and check sensor readings and the operation of the engine ECU, a special computer (tester) is required. Therefore, repairs and diagnostics of the VAZ 2107 injector are carried out at specialized service stations. The most common cause of injector failure is clogged injectors.

Causes of injector clogging

Deposits form more intensively at low temperatures, so when the car is frequently driven with a cold engine, the injector becomes clogged more often.

Deposits can accumulate not only in the injectors. Often vapors settle on the throttle valve, which leads to a change in the proportions of the air-fuel mixture entering the cylinders.

Deposits of substances contained in low-quality gasoline may also appear on the back of the intake valve plates. This can lead to valve burnout or fuel detonation.

To clean the injection system of deposits, it is necessary to use special flushing fluid and equipment. You can wash the injector in a garage. To do this, you need a syringe and washing liquid. The latter is mixed with gasoline and poured into the injection system through the hose of the vacuum brake booster. First, the operation is performed with the engine turned off, then with the engine running. The mixture is fed into the running engine gradually, in small portions. As a result, the deposits dissolve, enter the engine cylinders and burn there. In this case, clouds of smoke may briefly appear coming out of the muffler.

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Injection VAZ 2107 from what year

General view of the engine compartment of the VAZ 2107. It is immediately clear that there is no distributor and carburetor.

The VAZ 2107 was not always “injected”. For many years the engine was carburetor. Only since 2006, for the production of VAZ for the domestic Russian market, the engine acquired a forced fuel injection system. The meaning of those innovations was simple - compliance with already accepted Euro 2 standards, which European cars have complied with for many years. The total power of the unit with the new power system was 50 kilowatts. The characteristics of the engine with the new fuel injection were as follows:

• The mode of consumption in the city is 8.5 liters\100 km;
• Fuel consumption at a speed of 90 km/h – 6.9 – 7.0 liters/100 km;
• Consumption at a speed of 120 km/h is about 9.1 liters.

The plant guaranteed these characteristics for the VAZ 2107 injector when using gasoline type A - 95. No other type of gasoline was provided for the calculations. The point of converting from carburetor injection to electronic injection was that constant adjustment and fine-tuning of the injection was not required, as with an injection engine. The device is such that the idle speed indicators do not “float”.

The device shown is a control unit, “microprocessor brains.”

The block takes into account the indicators of those sensors that are necessary for the normal operation of injection injection, namely:

The sensors described above relate exclusively to the injection system, and they are not available on carburetor versions of the “seven”.

Naturally, “there is no smoke without fire.” Therefore, along with many advantages, VAZ 2107 equipped with fuel injection also has certain “cons”.

Disadvantages of an injection engine;

• High requirements for fuel quality and octane number;
• The catalyst installed “under the bottom” of the car significantly reduces the ground clearance, depriving the “Seven” of some off-road advantages over the “puzoterki”;
• More complex engine repairs and difficult access to engine compartment parts.
• In order to find a malfunction in the injection system, special instruments are needed;
• In general, the “injector” is more capricious. So, for example, the opportunity to light a cigarette for a friend may result in the engine stalling. The reason is a malfunction of the “electronic brains”.

But the advantages completely compensate for these disadvantages, since injection injection allows you to save fuel, makes cold starting of the engine easier, and there is no need to “tinker” with the carburetor. A car with such an injection will serve you for many years with proper care.

For quite a long time, the VAZ 2107 headed the model range and was, as they say, the flagship. Then the "nine" appeared, and the "seven" lost its title. Since the beginning of production, various engines were installed on the VAZ 2107, among which one could find 1.6 liters, 1.5, and sometimes even 1.3. As for gearboxes, only 4- or 5-speed manuals were found here - as you know, classic automatic transmissions do not exist in nature.

All of the above engines had a carburetor power system, so their simplicity was sometimes amazing. The plant began producing the injector in 2002. There is no carburetor here, and fuel is supplied to each cylinder through injectors. It itself begins in the tank in which the high-pressure pump is installed. Next, the gasoline enters the pipeline, through which it reaches the fine filter. The latter is tightly tightened with nuts, so the entry of air into the system is completely excluded. It is thanks to this design that the VAZ 2107 injector is much more reliable than its carburetor predecessor.

But despite this, car maintenance is not much different. For example, VAZ 2107. The injector does not affect the operation in any way, so you should not forget about this procedure. If it is not carried out on time, carbon deposits will form on the seats, which will inevitably lead to damage to the valve mechanism.

It must be said that the malfunctions remained the same. Naturally, the wear of parts should be classified as a separate group, but some attention can be focused on “diseases”. For example, a serious vulnerability of the front suspension. Silent blocks are also considered to be its “sore spot”. Naturally, this is just one example, which, upon reflection, can give about a dozen more. But despite this, the designers must be given their due. The fact is that the VAZ 2107 injector does not cause any trouble with its engine. Caring for it comes down to timely replacement of oil and filter elements, as well as some adjustment.

The latest VAZ models are equipped with hydraulic compensators, so maintenance of the valve mechanism is excluded from this list. In general, there are advantages to choosing the injector; in fact, it becomes just a pleasant addition to the whole car. Until 2006, it was possible to choose between, but then the buyer was deprived of such a choice.

Among other things, it is worth noting the relative popularity of this car. There are many people in Russia who prefer “classics” to foreign-made cars, as well as models with front-wheel drive. So, except for the VAZ 2107 injector, they simply have no options. And such a stir can also be explained by the fact that the model was offered under a recycling program, and its price was the lowest among VAZs. Be that as it may, the Volzhsky Automobile Plant has curtailed this production, and now the Lada Granta will be assembled on the same lines. The popularity of the latter is gaining momentum. Let's see if she can defeat the "seven".

The VAZ 2107 with an injection engine appeared on the market at the end of 2005. Until this time, all VAZ 2107 cars were strictly carburetor. Mass production of these models fell out in the mid-90s, but they are still popular today. The injection VAZ 2107 was not produced for long - not so long ago the production of this model ceased completely.

Technical characteristics of VAZ-21074 injector

The most significant feature of the VAZ-21074 model that appeared in the early 80s, which distinguished it from other modifications of the “seven”, was its equipment with a 1.6-liter VAZ-2106 engine, which initially only ran on gasoline with an octane rating of 93 or higher . Subsequently, the compression ratio was lowered, which made it possible to use lower grade fuel.

Table: technical characteristics of VAZ-21074

The dynamic performance of the VAZ-21074 is inferior to most budget foreign cars, but domestic car enthusiasts appreciate the “seven” for other qualities: spare parts for the car are inexpensive and publicly available, even a novice driver can repair almost any component and unit on his own. In addition, the machine is extremely unpretentious and adapted for operation in Russian conditions.

Video: the owner of a VAZ-21074 injector shares his impressions of the car

The engine from the VAZ-2106 was installed on the VAZ-21074 without changes: among other things, the camshaft chain drive was left, which, compared to the belt drive (used in the VAZ-2105), is more durable and reliable, although noisier. There are two valves for each of the four cylinders.

Model characteristics - convenience and practicality

The injection model has a 1.6 liter engine. The design of the car has been improved with hydraulic compensators, which make the engine much quieter. The car's rear-wheel drive makes it stable on the roads, especially in the winter when there is ice outside. Overall, this car is very convenient for our roads and practical. The carburetor model had very high fuel consumption, but this problem was eliminated in the injection car.

The VAZ 2107 was created on the basis of the VAZ 2105 prototype, because it had proven itself very well in the domestic market at one time.

The design of the VAZ 2107 chassis also makes the car practical and durable in off-road conditions. The car has, and the rear part contains a strong beam. This car model can be repaired at any service station. The price of the VAZ 2107 is especially pleasing; it is significantly lower than the cost of other VAZ models. The availability of spare parts for cars of this brand also pleases owners, because they can be purchased without much difficulty at any auto store.

What kind of engine can be installed on the “seven” instead of the standard one?

The driver begins to think about changing the engine when, for some reason, he is no longer satisfied with the operation of the standard equipment. In general, the 2107 model is excellent for various kinds of technical experiments and tuning, but the rational approach to choosing new equipment has not yet been canceled.

Therefore, before you even think about a new motor for your swallow, you need to weigh the pros and cons, namely:

• what goals need to be achieved when replacing a standard engine;
• are there technical capabilities to safely connect the motor;
• Is it possible to do the replacement yourself, etc.

Engines from other VAZ models

Naturally, engines from cars of the same family can be installed on the VAZ 2107i without significant modifications and loss of time. Experienced car enthusiasts advise taking a closer look at engines from:

• VAZ 2114;
• "Lada Niva";
• "Lada Priora".

These are more modern power units with an increased number of “horses”. In addition, the engine dimensions and connection connectors are almost identical to the standard equipment of the “Seven”.

Engines from foreign cars

Imported engines are rightfully considered more reliable and durable, so the idea of ​​installing a foreign-made engine in a VAZ 2107i often excites the minds of drivers. It must be said that this idea is quite feasible if we take Nissan and Fiat models from 1975–1990 as donors.

The thing is that Fiat became the prototype of the domestic Zhiguli, so structurally they have a lot in common. And Nissan is also technically similar to Fiat. Therefore, without significant modifications, you can install engines from these foreign cars on the VAZ 2107.

Nissan Silvia is an excellent donor for the VAZ 2107i, since the procedure for replacing engines is possible without the involvement of service station specialists

Rotary power units

On "sevens" rotary engines are not that uncommon. In fact, due to the specifics of their work, rotor mechanisms can significantly optimize the operation of the VAZ 2107i and give the car acceleration and power.

An economical rotary engine ideal for the 2107 is a modification of the RPD 413i. The 1.3-liter unit develops power up to 245 horsepower. The only thing the driver should know about in advance is the drawback of the RPD 413i - a service life of 75 thousand kilometers.

A very powerful rotary engine will make any “seven” fly

Today, the VAZ 2107i is no longer produced. At one time it was a good car at an affordable cost for living and working. The injection modification of the “Seven” is considered to be maximally adapted to Russian operating conditions; moreover, the car is easily amenable to various kinds of under-hood upgrades and alterations.

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Troubleshooting - identify and eliminate

At an average speed of 80–100 km, this car consumes 6.5–7 liters per 100 km. This flow rate was achieved using an injector. An injector is a device that completely replaces the operation of a carburetor. It consists of injectors and a fuel rail, as well as electronic sensors that give a signal for fuel injection. Fuel is injected into the engine using injectors, so it is very important to monitor and clean them on time so as not to interfere with the operation of your car’s engine. It is also worth refueling with high-quality octane fuel.

As a result of untimely replacement of fuel and air filters, as well as the use of low-quality fuel, the injector may fail. Don’t rush to a car service center - first, make sure that the reason for the poor performance of the car and the decrease in power lies not in these spare parts, but in something else. One of the main reasons for poor injector performance is incorrect operation of the control unit, the so-called computer. To identify the causes, you need to go through; in some cases, you will need to completely flash the unit.

During poor injector operation, the VAZ 2107 significantly increases fuel consumption, and the corresponding indicator should light up on the instrument panel, indicating the presence of an operating error. Problems in operation are also indicated by a decrease in engine power, and failures are also possible when pressing the gas pedal.

You can do a complete one at a car service center, or, after purchasing the necessary ones, you can do everything yourself.

These procedures will cost you much less, but they require technical skills and care. Before carrying out work, it is necessary to check all electronic sensors. This action can be performed by turning off the chips on them, and a characteristic sound should be heard on the instrument panel and one of the indicators should light up.

When to replace

According to the manufacturer's instructions, replacement should be carried out after traveling 10 thousand km when driving long distances and every 6 thousand km if trips were carried out mainly over short distances.

Also, the moment of replacement can be determined by the oil pressure sensor. Long service life dilutes the oil, so a cold engine shows high pressure, but after warming up the indicator drops significantly. Such differences signal the need for maintenance.

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