Instrument panel VAZ 2107 injector and carburetor: description of why it does not work

As in any car, the instrument panel of the VAZ 2107 combines instruments and indicators that display performance indicators of the engine and other critical components and assemblies. This allows you to notice malfunctions in time and prevent premature breakdown of machine components. To do this, you need to know what each device and warning light on the instrument panel is responsible for, and monitor their readings.

Tidy VAZ 2107: icon designations

If everything is clear with the main elements and arrow indicators, the indicators need to be deciphered.

The bulk of the light bulbs are located strictly in the center of the panel. There are 7 control indicators in the column; their explanation is presented in detail in the pictures below.

The first thing to install from the top is turning on the turn signals. The indicator is activated when pressed or alarmed.

Next is the check engine fault indicator. The light bulb is used only on injection engines.

The third one from the top is a faulty battery. If the indicator lights up, this indicates a breakdown in the generator line (the battery is not charging).

In the middle of the column there is a light bulb for turning on the dimensions. This indicator indicates normal operation of the device.

An indicator for activating the main beam of the head optics is installed even lower. The blue indicator indicates that the exterior lights are operational and working properly.

The penultimate light is an indicator of the critical oil pressure in the engine crankcase. If it lights up constantly, you need to add fluid to the required level or check the functioning of the pump.

The last place the manufacturer placed the parking brake activation indicator. Usually the light comes on when the lever is raised.

Also on the dashboard you can see a yellow diode indicating a critically low fuel level in the tank.

The light comes on only when the container is empty and there is no more than 5 liters of gasoline remaining.
The instrument cluster is not equipped with an emergency warning symbol; it is located on the power button.

Identification of buttons

Several switch keys can be installed on the car’s dashboard, which are responsible for activating certain elements and parts of the car. The following is a description of the main buttons on the car dashboard.

Number	Purpose
2	Turn on the sound signal.
6	Headlight position regulator.
10	Emergency button.
13	Heater switches.
14	Dashboard lighting.
17	The panel contains switches for external lighting, heater fan, foglights, and heated rear window.
19	A light that requires you to fasten your seat belt.
20	Reserve socket.

VAZ 2107: exclamation mark on the panel

A similar indicator appeared on the dashboard only in modifications of recent years. The symbol indicates the need to check the brake system.

The battery light on the dash 2107 is on

The indicator looks like a red battery-shaped icon. If the symbol is constantly on, it is recommended to carry out a thorough diagnosis of the generator and supply wiring. If the problem is not found, check the battery.

ECON on panel 2107: what does it mean

A thoughtful but simply executed car detail. The dial indicator shows the fuel mixture consumption in real time. The option helps the driver save fuel.

Removing the instrument panel

You have to remove the dashboard of the “seven” to replace lamps, instruments or in order to do tuning of the VAZ 2107 dashboard. Removing the “tidy” of the VAZ 107 does not require special tools and extensive experience in plumbing. The work order is as follows:

disconnect the ground wire from the battery;
use a screwdriver to pry off the heater control levers;
unscrew the nut securing the daily mileage reset handle and push the latter behind the instrument panel;
remove the plug of the self-tapping screw securing the dashboard;
unscrew the screw and pull out the instrument panel;
Unscrew the speedometer cable fastening nut by hand and uncouple it;
disconnect the vacuum supply hose from the econometer;
remove the wire blocks;
remove the “tidy” from the car.

Now you can repair, change or tune the dashboard.

To install the panel, perform the steps in reverse order.

The VAZ 2107 dashboard does not light up: reasons

If the device on the seven stops activating, check the components.

Corresponding fuse. The insert often burns out due to moisture or power surges in the on-board network.
Next, the wiring is checked. Some pins may not fit well or touch adjacent terminals, causing shorts and shorts.

Tidy 2107 does not work

If, when you turn on the ignition when the car is cold, the car does not start and the shield does not respond, check the above points and additionally inspect the ignition switch cylinder. Usually in this place the contact burns out or the connections oxidize, which causes loss of ignition.

Highlight the mass damage. Wires may oxidize, resulting in loss of contact.

2107: the tidy does not light up, the starter turns

When the shield goes out or the light is dim, check the operation of the external lamps and the illumination of the car interior. When everything is in order, remove the device and check the contact groups of the module.

VAZ 2107: temperature sensor on the dashboard does not work

The element fails only in two cases.

The sensor has failed.
Module wiring is damaged.

Compatibility of the electronic combination with the on-board network

The dashboard described above can be used on VAZ 2107 cars equipped with an injection system of various modifications. To connect the wiring harnesses, the developers used standard connectors that match the factory colors, which greatly simplifies the installation and switching of equipment. The geometric dimensions, shape and location of the mounting brackets are completely identical to the standard panel.

The equipment is adapted to work with electronic engine control units of January 5.1 and BOSCH M1.5.4 models. It is possible to reprogram the instrument cluster using an encoder with the latter connected through a special connector. The electronic europanel is compatible with parking sensors from the same manufacturer, information from which is displayed on the liquid crystal display.

Types of tachometers

Among the many different types of tachometers, only two are particularly popular:

But these two types of measuring instruments have a number of fundamental differences. They also differ in structure, characteristics, and, of course, in method of application. Therefore, it is further worth considering the question of what a tachometer is, based on its type.

Digital tachometer

The main components of a digital tachometer are a number of different parts. This:

CPU;
eight-bit ADC;
liquid temperature sensor;
LCD screen;
optocoupler;
various microcircuits (which perform reset functions).

Typically, electronic tachometers are made in the form of a screen, the main indicators of which are the engine speed per minute. Compared to an analog tachometer, its design has some disadvantages, although the advantages still prevail. First of all, using such a device is much more convenient.

Analog tachometer

The analog tachometer is the most commonly used measuring device, which is installed in most cars of domestic manufacturers, and on foreign cars too. Structurally, the device looks quite primitive - a regular display and arrow. But, guided by its readings, you can understand how to reduce fuel consumption.

The structure of analog tachometers is much simpler than digital instruments. Their main components are:

magnetic coil;
a sensor that reads information from the shaft elbows;
arrow;
graduated scale.

Similar to the device, analog tachometers work just as simply. The signal from the sensor that reads the number of revolutions of the crankshaft passes through the wires and hits the board, which sets the deviation for the arrow, the arrow in turn shows you the real data through a graduated scale.

True, the measurement accuracy of a digital tachometer is slightly higher. Although, this is only noticeable when adjusting the engine, since while driving the revolutions are counted in the thousands and the error does not matter much. Perceiving the readings of such a tachometer while driving is much easier than reading numbers from the monitor of a digital tachometer.

Connection diagram for tachometer VAZ-2108 and 2109

Let us immediately note that the fuel supply system – injector or carburetor – does not play a special role here. As you know, currently the most common are cars with the following engine types: gasoline or diesel. Depending on this, the tachometer is selected, unless, of course, it comes in the stock version. The thing is that on gasoline engines the tachometer reads data from the ignition coil, or rather, the impulses that arise here. However, the design of diesel power plants does not provide for this unit. Accordingly, here the tachometer reads pulses not from the ignition coil (for lack of one), but from the generator.

The first two wires (12-volt and Signal) are to contacts “B” and “K” of the ignition coil, respectively. All that remains is to secure the mass in any convenient place.

Useful: VAZ starter connection diagram

Kinds

There are many types of tachometers. What are the differences between them?

Installation.
Tachometer type.
Differences between carburetor and injection systems.
Connection method.
Principle of operation.

VAZ 2105

Installation

There are 3 main options for this parameter:

contactless;
regular;
remote

Installation of standard devices is carried out in the panel. We are talking about a shield with a VAZ 2107. Remote ones can be located anywhere. They come with a special leg for fastening. You can use either adhesive tape or double-sided tape. In a word, everything depends on the flight of fancy. Non-contact tachometers do not require connection, which means that installation is not necessary for them. It should be taken into account that such devices are not designed for constant monitoring of speed. They are better suited for checking, tuning the engine and the main tachometer.

Types

By type, all tachometers are divided into:

digital;
electronic;
analog;
mechanical.

A mechanical tachometer is a rarity. These are the very first devices that were installed on cars. Its use today has no basis other than adherence to retro style. Analog tachometers are the main type that is found on the VAZ 2105. They have the form of a dial and a arrow, less often, a vertical or horizontal scale. These are the devices installed in panel 2107, but they can also be remote.

And the last type is the most modern. This is a digital tachometer. It has a lot in common with the electronic one, but the display is better. Capable of displaying several different dimensions at the same time and having a nice design. This is the most expensive type.

Injector and carburetor

Many car owners have long switched to using an injector instead of a carburetor. The tachometer of the injector and carburetor has a slight difference. But it will not work correctly, without intervention in the design.

You need to pay attention to this

Connection method

The device is selected for a specific type of engine. The connection is carried out strictly according to the tachometer instructions. The colors and purpose of the wires may vary greatly.

The most common connection is 3 wires:

"+" to "+";
“–” to “–” or “ground”;
"signal" for ignition.

This connection is used when replacing the tachometer on a panel from a VAZ 2107.

The second connection is more often used on remote devices. It looks like this:

“+” to “+”, to the terminal marked “B+”;
“–” to “–” or “ground”;
“signal” to the coil (contact “K”).

There are all sorts of options that allow you to use the device for your own purposes. For example, the connection determines when and how the device will turn on. The choice depends on the owner’s knowledge of the car’s electrical circuits and the flight of his imagination.

Helpful information

Due to the unification of many electronic components of the VAZ family, car enthusiasts waste time searching for the required wiring, not suspecting that it may have the index of another model.

The presented list contains indices of some of these products installed on the VAZ 21074:

Instrument panel wiring – 21053-3724030;
Instrument panel wiring – 21053-3724035-42;
Wiring for fuel injectors – 21214-3724036;
Starter connecting wire – 2101-3724060;
Ignition system wiring – 21073-3724026;
Rear wiring harness (flat) – 21073-3724210-10.

How many kilometers does it twist?

You yourself understand perfectly well that it would be stupid to reduce the value to 300-400 thousand on a car with almost a million kilometers traveled. This will become obvious even from the condition of the car itself and a number of indirect signs. Therefore, twisting occurs carefully, within certain limits, beyond which it is potentially very risky. Statistics show that in most cases the twist is a quarter of the current value. This does not make it possible to detect fraud by indirect evidence, but at the same time the car automatically becomes more expensive with such mileage indicators.

Let's assume that you are shown a car with the number 250 thousand kilometers on its display. There is a high probability of actual mileage of 300-350 thousand. But there are also scammers who have no sense of proportion. They significantly reduce the actual values, at significant risk. At the same time, there are active buyers who believe what they see, and find out about the actual mileage at the next technical inspection.

The actual values depend on how conscientious the seller is. Let’s not hide the fact that there are many people who don’t even think about twisting before selling. But there are also those who do this professionally and earn decent money from deception. You cannot completely rely on the seller’s clear conscience and assume whether the mileage is incorrect or not. You definitely need to figure out how to check the mileage of a car. But to do this, you need to understand how such manipulations with the odometer are generally carried out.

Relay on fuse box

The fuse block relays and the VAZ 2107 relays are located in the same fuse block. Their purpose:

Rear defroster relay.
Relay for washer and headlight cleaner.
Power supply for sound signal.
Cooling system electric fan relay (up to 2000).
High beam relay.
Low beam relay.

Checking the serviceability of the relay can be done using a multimeter. To do this, it is necessary to test the armature winding. Its resistance usually ranges from 50 to 200 ohms. It is safer to test connect the winding to the vehicle's on-board voltage. To do this, the relay must be removed from the relay and fuse block. If one terminal of the winding is connected to the positive terminal of the battery, and the other to the negative terminal, you should hear a characteristic click of the activated relay. The main causes of relay malfunction:

burning of contacts;
break or burnout of the relay winding;
sticking of contacts.

Reduce mileage in Moscow inexpensively, free visit of a specialist

How to twist car mileage

Any car owner, sooner or later, may be faced with the need to check the mileage of a car. Regardless of the reasons that prompted you to do this, we will help you correct the numbers on the speedometer quickly, efficiently and inexpensively, at any time convenient for you.

In what cases is it used?

The need to rewind or rewind the mileage may arise in situations where the numbers on the speedometer (odometer) of the purchased car do not correspond to the actual mileage. For example, if the car was bought from a company where the drivers abused the mileage, or the mileage was simply removed before the sale, and the new owner wants to restore the real mileage of the car.
You may also need to wind up (twist) or wind up (increase) the mileage after replacing the instrument panel with a new or used panel in order to set your mileage figures.
On many domestic, as well as some imported cars, the mileage can jump both up and down by tens and hundreds of thousands of kilometers due to faulty wiring, slow battery drainage or defects in the instrument panels themselves, resulting in the need for mileage adjustment.
Sometimes it becomes necessary to adjust the speedometer (odometer) if the actual gasoline consumption is higher than that specified in the fuel consumption standards or the km trip does not correspond to the actual distance.
It also happens that a car owner simply wants to “rejuvenate” his car. For example, after a major overhaul or for a number of other reasons.

We will help you implement any manipulations with the speedometer indicators! Mileage correction is carried out using special equipment by specialists who have considerable experience in working with car electronics.

To get mileage in Moscow, just leave a request on the website or call the numbers provided in the “Contacts” section. The service is provided on-site, which significantly saves your personal time.

The price for car mileage correction services directly depends on the manufacturer, as well as the make and year of manufacture of the car. For example, to correct the mileage of a domestic car, an average of 30-40 minutes is enough. If we consider a new German car, then for correction it is necessary to “bypass” multi-level protection, which can take up to 6-7 hours. At the same time, checking the mileage on Ford and many other cars is carried out through the diagnostic connector, which takes about 10 minutes.

If you need to change the mileage of your car inexpensively, feel free to contact our company. Despite the fact that our city is Moscow, our specialists will arrive to you within a few hours.

Installation of electronic combination

The purchased equipment is removed from the packaging and inspected and attached using self-tapping screws to the decorative trim. The wiring harnesses of the on-board network of the VAZ 2107 car are connected to the connectors located on the reverse side; for convenience, they have different shapes and differ in color. The instrument cluster is inserted into the niche and fixed in it with a screw.

The handles on the ventilation and heating control levers are installed in place. After connecting the battery and turning on the ignition, the instrument panel begins to function. The next step is to set up the combination according to the description in the attached manual. Upon completion of the manipulations, you can begin operating the car.

Check actual mileage based on vehicle age

Checking and adjusting thermal clearances in the Renault Logan valve drive

Let's start with statistics. The actual mileage of a passenger car, which is used exclusively for family and business trips, usually does not exceed 20 thousand kilometers per year. Let's take the average age of the used market to be 5 years. It turns out about 100 thousand mileage.

But, you need to take into account that the car could perform transport services. And there is a completely different mileage. In a couple of years, such “chariots” cover up to half a million kilometers, if the engine and everything else hold up.

Therefore, it is very important to distinguish a personal car from the car on which the taxi driver or courier worked. First, take a look at the interior, namely the front passenger and rear row (if equipped)

If only the driver's side is dented, and the rest are like new, this is clearly not a personal car. Secondly, look at the doors. Does the driver's side play, creaks, and doesn't close well? Read above. Thirdly, carefully look at the condition of the map, window control buttons, the condition of the steering wheel and pedals, and the scenes. Is it wobbly, creaky and scratched? Say goodbye to the seller. The final touch is a suspiciously polished body. This is an attempt to hide frequent scratches and advertising stickers.

It should be noted that you can rejuvenate the car directly in the passport, so carefully study the glass markings. Compare the data on the glass with the Internet and see in what year the batch left the assembly line. Just in case, check that the markings are identical on all car windows. If the markings are different, this may mean that the car is damaged.

In addition to glass, the car has a lot of parts with markings stamped on them indicating the year of manufacture. Such a stamp may well be on the windshield washer reservoir. Also, do not forget about the engine number.

The most common breakdowns

Both the speedometer, which shows speed, and the odometer, which is the mileage counter, can fail. Problems can manifest themselves in various ways, such as a stationary needle on the instrument, extraneous noise in the dashboard, or incorrect readings while driving. Excellent causes of breakdowns in mechanical and electronic speedometers.

Mechanical

Mechanical devices are divided into types:

pointer - consists of a metal plate with a printed scale and an arrow indicating the speed of movement;
tape - a painted tape on a marked scale shows the speed;
drum - the indicator is a tape moving between the reels and indicates the speed on a marked horizontal scale.

Pointer-type speedometers are still found in cars. They consist of a worm unit with a rotating gear, a cable drive, and a magnetic element. An accompanying element connected to the cable is the odometer, which calculates mileage.

The operating principle is based on the rotation of the secondary shaft of the gearbox, which provokes the movement of the cable. In turn, the cable is connected to a magnet, which sets the arrow in motion by “pulling” the metal plate.

Digital indicators

Now let's move on to digital indicators. There are only two of them: the total mileage of the car and the daily mileage.

Total mileage - located under the speedometer needle, has a value range from 0 to 99,999 km. Shows the number of kilometers traveled over the entire period. Helps determine the mileage required for an oil change and timely overhaul;
Daily mileage - located above the speedometer needle. Its range is from 0 to 999 km. Helps calculate fuel consumption per 100 km, under different driving modes.

That's all, we have figured out what each sensor and device means. It is highly recommended that you do not ignore them, and the chance of an unpleasant surprise on your trip will be greatly reduced.

Console tuning

Tuning the VAZ-2107 console is an optimization of the front panel, as a result of which many useful features and advantages can appear in the car, such as a new tape recorder, clock or cigarette lighter. Refinement of the beard of the VAZ-2107 allows you to make the vehicle more original and functional. Anyone can, through simple improvements, install a player, a modern clock, a USB socket, devices for monitoring the electrical network and small “pockets” for small items in the car.

Among the main tools, without which tuning the standard beard of a VAZ-2107 is impossible, it is worth noting: an electric jigsaw and drill; "grinder"; locksmith corner; a simple pencil; ruler; glue and stapler for furniture.

Do-it-yourself tuning of the VAZ-2107 beard may involve the manufacture of a new panel, which will initially have special areas for the location of switches and indicators. The easiest way to tune the console is with ordinary plywood with a thickness of about 6 mm. It is advisable to use artificial leather as finishing materials, which perfectly matches the color with the rest of the interior elements. Recently, car owners have even adapted to introducing carbon fiber.

Tuning the VAZ-2107 beard can be done with the help of a comprehensive modernization, which will “radically” change the interior of the car. Replacement on doors and other interior elements can be made using carbon fiber and leatherette. The new console will need to be positioned in place of the factory fixture, which must first be dismantled. By removing a standard beard, the motorist can quickly take measurements to further create drawings.

Signs of a malfunctioning speed sensor

If the speed sensor malfunctions, it becomes impossible to measure the speed of the car, but that's not all. The worse thing is that this causes interruptions in the operation of the motor. The most common signs that indicate a malfunction are the following, which can only be eliminated by replacing it:

the speedometer does not work or gives incorrect readings;
unstable idle;
increased fuel consumption;
the engine stops developing full power.

If the speed sensor on the Kalina is faulty, the symptoms include inoperative electric power steering and increased sensitivity of the fuel gauge to the level of gasoline in the tank.