How to adjust idle speed on a VAZ-2106

Idling VAZ 2106

If your car starts to stall at idle, then the fuel filter needs to be properly adjusted or cleaned.

Table of contents

Adjustment Disappeared How to configure Malfunctions

Adjustment

To adjust the idle speed, the only tool you need is a flat, narrow screwdriver, preferably with a short handle. Adjusting the idle speed should only be done when the engine is warm. The timing and ignition clearances must be adjusted. If the adjustment is carried out on a cold engine, it will not bring the desired effect and it will not be possible to achieve stable performance.
Idle speed adjustment is carried out using 2 adjusting screws: 1st - the quality of the mixture and 2nd - its quantity (Fig. 2). By default, at the factory, adjusting screw 2 is equipped with a restrictive sleeve, which acts as a seal. Thus, the manufacturer indicates that the rotation of the screw is within the factory range. For complete adjustment and when it is not possible to adjust the idle speed, the restrictive sleeve is removed and the basic adjustment is carried out.
Use screw 1 to set the crankshaft speed to 900 min.-1. They can be checked on a special stand or using a tachometer located on the instrument panel.
Using screw 2, you need to achieve a CO2 value that falls within the range of values from 0.5 to 1.2%. A special device will help with this - a gasometer.
The rotation of screw 2 helps to change the crankshaft speed. In this case, we again adjust and set screw 1 to the value of the rotation speed within 900 min.-1.
The correct idle speed setting is checked by pressing the accelerator pedal and releasing it sharply. The crankshaft rotation speed should increase smoothly and without failure, and then decrease as well. The engine should not stall. If this happens or jerks are observed when you press the gas pedal, the setting must be repeated.
It is recommended to place the limiting bushings on the adjusting screws, focusing on the mounting lugs. After completing the idle adjustment, the engine should run stably.

gone missing

I had this happen too - I needed to thoroughly flush the bottom of the carburetor, check and, if necessary, replace the needle valve and adjust the position of the float. Particularly check the idle jet on the back of the carburetor opposite the valve cover.
Check the condition of the contacts, the integrity of the central high-voltage wire and the resistance of the slider. The ELXX valve on the Azon carburetor may be faulty, the tube may have broken or fallen off. A carburetor malfunction is also possible.
Read also: When over-gasping, popping sounds in the muffler: carburetor, injector, diesel

How to setup

To solve the problem of how to adjust the idle speed on a VAZ 2106, you need to stock up on a set of driver’s tools, although one screwdriver is enough for this technological operation. On the Internet you can watch the “VAZ 2106 idling” video clip about carrying out adjustment work to stabilize the idling speed of the vehicle.
To adjust the idle speed of the “six” carburetor, a number of preparatory conditions must be observed. These include:
The operation is carried out only on the motor that has reached operating temperature (about 90 degrees Celsius).
The clearances of the timing valves and ignition contacts (with a contact system) must correspond to the required dimensions.
When adjusting the idle speed of a VAZ 2106 carburetor on a cold engine, the required result cannot be achieved. If there is no idle speed, it will appear only if the correct adjustment conditions are met.
If the VAZ of the “sixth model” stalls at idle, then to find out how to adjust the idle speed, you need to use the following algorithm:
The process of adjusting the idle speed on a VAZ 2106 car is carried out using two screws for adjustment, the first is the quality screw, the second is the quantity of the mixture.
In accordance with the factory parameters, the quantitative adjusting screw is locked with a sealed limiter sleeve. To carry out adjustments and when there is no idle speed on the VAZ 2106, the seal is removed and adjustment work is carried out.
Read also: Removing the rear seats on a VAZ-2110 with a backrest
Using a high-quality screw, we achieve a value of 900 rpm, checking the value with the tachometer readings.
Using the quantity screw, we use a gas meter to set the carbon monoxide value in the range of 0.6-1.3 percent. The circular movement of the adjusting screw changes the number of rotations of the crankshaft of the power unit.
In this situation, we re-fix the required crankshaft speed parameters with the first screw. If everything is done correctly, then when you sharply press and lower the accelerator pedal, the rotation value should remain stable.
If all operations are performed correctly, there should be a smooth increase in engine speed and the unit should operate stably.

Malfunctions

There are three most common causes of idle speed disappearance:
— clogging of the EMC idle jet;
— EMC burnout;
— lack of power supply to the EMC.

The main stages of adjusting the carburetor on a VAZ-2106

The entire adjustment process takes an experienced car owner only a few minutes and is performed in the following sequence:

first, using the screw that regulates the amount of mixture, the required speed is set. For a VAZ-2106 car this is 850 rpm;
then, using a screw that controls the quality of the mixture, the position at which the speed will be maximum is determined;
if the resulting value is more than 850 rpm, we return to the quantity screw and reduce it to the desired level;
as soon as the number of revolutions reaches the required value, tighten the high-quality screw, and then move it about a third or a quarter forward and back.

The engine does not idle: the main reason

The first thing you need to pay attention to is the solenoid valve. However, it is not installed on all VAZ 2106 carburetors. It is this small device that most often falls into disrepair. Its operating principle is similar to a solenoid relay - there are windings, an armature, and a return spring, but the dimensions are somewhat smaller.

The function of the solenoid valve is to open the path for gasoline to flow (with the throttle valve closed) when the ignition is turned on. And close when disconnected, respectively.

The most common breakdowns of the solenoid valve, as a result of which the idle speed disappears:

The winding is destroyed, the armature with the needle does not move, fuel is not supplied.
The fuel nozzle located on the edge of the valve is clogged.
The valve armature is jammed due to deformation.

You can check this device very quickly; you will need a small piece of wire, stripped from both edges. Connect one end to the positive side of the battery, and connect the other end to the terminal of the solenoid valve. There should be a fairly loud click, but if it doesn’t, then most likely the winding is damaged.

If there is a click, remove the wire connected earlier and turn on the ignition. Place the power connector onto the valve. If there is no click, then the wiring is damaged. In the event of a breakdown, there can be three exits, you can use any:

If the solenoid valve is completely destroyed, it would be wise to unscrew it and remove the tip (fuel nozzle). And thus get to the nearest store without much difficulty. The price of a new VAZ 2106 solenoid valve is about 100 rubles, so repairs will not be expensive.
Temporarily connect the output of the solenoid valve to the positive terminal of the battery - if the wiring is damaged. But in this case you will have to remove the wire during each stop.
It would be much more efficient to run a wire from the solenoid valve output to the “+B” ignition coil contact. The fact is that voltage appears on it only after the ignition is turned on.

VAZ 2106 - carburetor and its features

The carburetor on the VAZ 2106 has a similar operating principle to that described above, but it has some design features. It belongs to an emulsion-type device with a falling flow, and in this case there are two float chambers . One of them contains dosing systems, also 2 of them, and a special enrichment device. The second balanced float chamber is designed to directly mix the fuel-air mixture of the desired composition.

In addition, the design of Ozone carburetors also includes special transition systems. They connect both chambers, a diaphragm pump, a sprayer and a shut-off solenoid valve, without which idling cannot be carried out. The crankcase gases are removed through a spool device, and the ignition timing can be controlled using a special fitting.

Solex carburetors (DAAZ 21053) were very popular among VAZ 2106 owners. They are quite economical and show good dynamics. Solex carburetors were distinguished by the presence of a fuel reverse supply system, which allows saving up to 800 grams of gasoline per 100 km. Later models were additionally equipped with an automatic start function when the engine is cold and the electric vehicle has an idle speed function. Among the disadvantages, the air channels are too narrow, which often become dirty and problems arise with idle stability. For Solex to work well, it is necessary to periodically carry out diagnostics and cleaning.

Carburetor engines are already becoming a rarity, since they have long given way to injection systems, but cars with an outdated injection system are still found on the roads. In general, the carburetor is a fairly simple and reliable unit if it is operated and maintained correctly. If malfunctions occur, repairs should not be delayed, since fuel consumption and dynamics directly depend on this.

Signs of malfunction:

If the carburetor begins to produce a rich mixture, you will understand this by the following signs:

Fuel consumption increases
Loud exhaust is heard from the muffler and the smoke turns black

If the engine receives a lean mixture, you will understand this by the following sign:

Loud bangs are heard from under the hood.

In both cases, the engine heats up noticeably more, and its power is also lost.

Setting up the VAZ-2106 carburetor with your own hands.

If you encounter a similar problem, remember that it is a natural consequence of using the carburetor. Any element of the car requires care, regular inspection and maintenance. Therefore, the VAZ 2106 carburetor must be adjusted from time to time.

Before proceeding with the adjustment, you need to make sure that the cause of the breakdown is not the failure of any element inside the device. You need to disassemble it, wash it and clean it. And only after you are convinced that all components of the structure are in full working order, you can begin adjustment.

The easiest option is to send the car to a specialist. Carburetor technicians have a special tool - a gas analyzer. Using this device, you can achieve the most efficient system setup. However, the services of specialists in this profile are not cheap. You may want to do all the work yourself, using available materials. Next we will look at how to set up a carburetor step by step.

Carburetor malfunctions, their causes and methods of elimination

According to the recommendations of experts, the VAZ-2106 carburetor must be subjected to maintenance at least once every 30 thousand km. mileage Thus, you will be able to promptly identify and eliminate various types of malfunctions in the form of torn diaphragms, breakdown of the accelerator pump, or incomplete opening of the second mixing chamber.

How to determine that the carburetor of a VAZ-2106 car has failed and needs to be restored? To do this, you just need to pay attention to the signs indicating this, described below:

The presence of popping sounds when you press the gas pedal - the cause of the problem is micro-explosions of the air-fuel mixture, known as detonation. If detonation is observed in the intake manifold, one should conclude that the mixture is too lean, and popping noises in the muffler indicate too much gasoline in the combustible mixture. In both cases, the carburetor should be adjusted, although often the reason lies in a violation of the ignition timing.
The engine is running unsteadily (the speed is floating) - if you notice this “symptom”, it means that you need to adjust the idle system.
While driving, the engine does not pick up speed or picks up speed too slowly when you press the accelerator pedal - the presence of this problem may indicate that the drive of the second mixing chamber has failed.
Slow, jerky increase in revolutions when upshifting and pressing the gas - if you encounter such a problem, then the accelerator pump needs repair.

You can perform carburetor cleaning and repair operations yourself.
Next, we will tell you in detail how to clean the carburetor and perform all the necessary repair operations yourself.

Purpose and design of the VAZ 2106 carburetor

The VAZ 2106 car began production in 1976 and immediately gained great popularity among domestic car enthusiasts. To keep the small engine running smoothly, it required air, fuel, a powerful spark, and compression. The first two elements are mixed in a carburetor, designed to prepare an optimal fuel-air mixture. On the VAZ 2106, the manufacturer installed an “Ozone” carburetor produced by the Dimitrovgrad Automotive Assembly Plant (DAAZ).

On the VAZ 2106, the designers installed an “Ozone” carburetor manufactured by DAAZ

The operation of the device is based on the principle of jet propulsion. A powerful jet of air through the jets located in the diffuser carries fuel from the float chamber. As a result, a fuel-air mixture is formed in the proportions necessary for its ignition in the combustion chamber.

The carburetor consists of three main parts:

The upper section is a cover with a damper to regulate the flow of air into the combustion chambers. Using a system of channels, it is connected to the throttle valve and the float chamber.
The middle section consists of diffusers, fuel nozzles and a float chamber. The diameters of the jets are shown in the table.
The lower section includes the throttle valves of the two chambers.

Table: calibration data for the Ozone carburetor

Any deviation in the composition of the fuel-air mixture from the optimal one affects engine performance. It becomes difficult to start a cold and warm engine, its operation at idle and in operating mode is disrupted, and acceleration dynamics deteriorate.

Carburetor VAZ 2106

The carburetor is one of the most critical components in the fuel supply system to the engine of a VAZ 2106 car. It is responsible for creating the fuel-air mixture, which is necessary for the normal operation of the power unit.

Carburetor OZONE

A carburetor with the correct settings prepares a normal combustible mixture of gasoline and air (1:15). But during prolonged or intensive use, the factory settings are violated, as a result of which an enriched or lean fuel mixture constantly begins to flow into the engine. This immediately affects its operation and requires carburetor repair.

Why does the car deviate from a straight line?

When the car does not want to move straight, the ride becomes uncomfortable - the driver has to constantly steer, and in some situations actually keep the car from drifting. You can’t relax - you’ll end up in a ditch or have a head-on collision with an oncoming car. It is better not to delay in finding out the causes of the described problem.

Spontaneous movement of the machine from a straight path may be a sign of the following problems:

The pressure in the front tires is very different;
uneven wear of the front wheel treads;
faulty steering parts;
problems with the front suspension and chassis;
malfunctions of the brake mechanisms.

Before looking for reasons, it is advisable to make sure that the car actually pulls to the side when you let go of the steering wheel. Example: When driving on unpaved and poorly paved roads with ruts, the wheels tend to follow the path of least resistance and are reluctant to leave the grooves. Carry out the test on a flat piece of road surface.

The bulk of the listed problems occur during the acceleration and forward movement of the car. Brake malfunctions are immediately noticeable: the car drifts when slowing down. The more intense the braking, the more the car deviates from the straight line, and the driver has to turn the steering wheel more to keep the vehicle on the desired trajectory.

Other engine and system malfunctions

Compression in the engine cylinders is low.
The cylinder head gasket is damaged.
The engine control system is faulty.
The valves of the gas distribution mechanism are burnt out and leaky.
The exhaust system is leaking.
The valve clearances are not adjusted (8-valve engines only).
The hydraulic pushers are faulty.
The engine air filter is dirty.
Vacuum hose connections are leaking.

Have you encountered power failures or observed unstable engine operation? What was the reason? We solve similar power unit problems in the comments or on the forum. Let us remind you that along with misfires, other engine malfunctions may appear, for example, floating speed.

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Adjusting the drive:

Checking the length between the tips. The required size is 80 millimeters.
If you deviate from this size, remove one tip.

Setting up the VAZ-2106 carburetor with your own hands.

Loosen its lock nut and by rotating adjust the distance to the desired size.

Setting up the VAZ-2106 carburetor with your own hands.

Tighten the nut and return the rod.

Setting up the VAZ-2106 carburetor with your own hands.

You need to check the adjustment. To do this, our assistant presses the gas pedal. We observe the throttle valve to see if it has opened completely.

Setting up the VAZ-2106 carburetor with your own hands.

If not, then you need to remove the tip from the lever and reduce the length of the rod.

Setting up the VAZ-2106 carburetor with your own hands.

Now you need to see what position the damper is in when the gas pedal is released: does it close completely. If not, the pull needs to be lengthened a little.
Next we work with the air damper. We weaken its drive. In the cabin, we completely recess the damper.
Press the three-arm lever so that the flap opens all the way. In this position, tighten the locking screw.

Setting up the VAZ-2106 carburetor with your own hands.

Checking the adjustment. To do this, we completely close and open the door from the passenger compartment again. If the damper has not opened completely, we carry out the adjustment again. If the outcome is positive, fully tighten the screw.

Setting up the VAZ-2106 carburetor with your own hands.

We adjust the VAZ 2106 carburetor starter

These works can be performed directly in the car. But you will have to first remove the filter cover. 1. Turn out the plug. Underneath we find the adjustment screw.

2. If you carry out the work without removing the carburetor from the car, pull out the choke. If you have the device in your hands, press the three-arm lever. After the damper is completely closed, push the rod down until it stops.

3. We look at the gap between the camera and the air damper. A 5.5 mm drill will help us with this.

4. If necessary, make adjustments by turning the adjusting screw using a screwdriver.

5. Return the cork back. 6. Now you need to check the distance between the camera and the throttle valve. The required size is 1 millimeter. A drill with a similar diameter is suitable for this. The gap is adjusted using a rod, which is either rearranged into a different hole or bent.

If not the valve, then what?

Dirt, low-quality fuel, malfunction of the ignition system - all this separately and in the compartment can affect the idle speed disappearing or becoming unstable. If you have already decided to carry out a full diagnosis, then start with the filters - air and fuel.

If they are heavily clogged, then gasoline or air (these are the main components of the air-fuel mixture) will not enter the carburetor normally. To be more precise, they will hit, but only after overcoming great resistance. And don't forget about the thimble-shaped filter that is installed at the inlet of the carburetor.

The solution is to replace all the filters and not have to worry anymore. But if this does not help, then you have many more faulty nodes. This means it’s time to look at the spark plugs (at the same time, remember how long ago you changed them). Unfortunately, a rare spark plug will last more than 30 thousand km.

And this is about a year and a half of operating the car in average mode. Unscrew the spark plugs, look at the carbon deposits, whether there is any and what color it is. With a long service life, the central electrode of the spark plug wears out and the gap increases as a result. Replace the spark plugs and check if the idle speed is stable.

Does it still stall at idle and not hold the revs? Then the ignition system remains. If you have a contact one, then check the gap in the breaker and set the optimal advance angle. If contactless, then diagnose the switch and Hall sensor.

These two elements fail more often than others. However, there is nothing more to break. Also inspect the condition of the high-voltage wires and, if necessary, remove moisture or dirt from them. The distributor cover should be without damage, and the resistance of the resistor in the slider should be about 5.5 kOhm.

Adjusting the float of the carburetor VAZ 2106

The main malfunctions not only of this type of device, but of all carburetors in general are associated with frequent clogging of channels that have a rather small diameter. Here, as a rule, the calibrated holes and jets of the VAZ 2106 carburetor suffer from such a “disease”. In this case, there is a disruption in the idle speed, and this will also have the most negative impact on the functioning of the throttle valve and its other devices. A similar malfunction can be eliminated by washing and further purging all clogged channels.

If they are also found to be leaking, then such parts should be urgently replaced. This failure may be caused by the following reasons:

any fastening connections have become loose;
the integrity of the sealing rings or rubber gaskets is damaged;
as a result of strong overtightening of screws, nuts and their fastenings, the carburetor covers were damaged or the diaphragm of the accelerator pump, starting device or throttle valve of the float chamber was deformed;
Also, the possibility of natural wear of some elements of this part, such as a needle valve, etc., cannot be ruled out.

In this case, the way out will again be to replace the old spare part with a new one.

If the car behaves strangely on the road, does not gain enough power, drives poorly or may even stall, while gasoline consumption increases, then, most likely, it is necessary to adjust the float of the VAZ 2106 carburetor. After all, the reasons for such behavior can be an excessive fuel level , entering the float chamber, which leads to the throwing of candles, and its elementary shortage. In such a situation, not only the float, but also the needle valve should be correctly adjusted, and then trips will bring only the most positive emotions.

These small parts have an impact on the performance of the car's engine. If you increase the fuel jet, you can make the car playful, but require a lot of fuel. By installing an air jet with a large cross-section, we get a machine that does not develop high speeds, but also does not require frequent refueling. It all depends on the wishes of the car owner.

Cleaning, setting, replacing and adjusting jets and adjusting the enrichment of the fuel-air mixture are carried out during maintenance and in the event of emergency situations.

Not enough air

Often the car starts up well and runs on choke, but as soon as the choke is turned off, the engine stalls. This indicates only one thing - lack of air. Most likely the air jets are clogged. They need to be unscrewed and cleaned. Then check that the car should not stall without suction.

There are an incredible number of reasons for poor performance of car components with similar symptoms, but only a specialist with a set of professional diagnostic tools can figure them out. But if you feel confident in yourself, go for it, VAZ service centers are already waiting for you.

Types of carburetors for VAZ 2106

On the assembly line, five types of carburetors were installed on the “sixes”:

DAAZ 2106-1107010 . Mounted with 1.6-liter internal combustion engines on vehicles manufactured before 1980.
DAAZ 2103-1107010 "WEBER". Installed with 1.5-liter engines on cars manufactured before 1980.
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DAAZ 2105-1107010-20 "OZONE" . Mounted with 1.1-1.3-liter internal combustion engines on cars produced in 1980-1991.
DAAZ 2107-1107010-20 "OZONE" . Mounted with 1.5-1.6-liter internal combustion engines on cars produced in 1980-1991.
DAAZ 21053-1107010 "SOLEX". Installed on all cars from 1991 to the end of the 90s.

The first two types of carburetors can be distinguished from other units by the absence of a pipe - a thin black or yellow hose running from the carburetor to the distributor - the ignition timing vacuum corrector hose is put on it.

You can distinguish “OZONE” from other types of devices by the “flying saucer” - a pneumatic drive for opening the second chamber. If there is no connection for the vacuum corrector hose, but there is a “flying saucer”, this is a DAAZ 2107-1107010-10 carburetor device. This unit is quite rare; it was installed only at service stations to replace the first two types of devices after they broke down.

How does a faulty carburetor behave?

No VAZ-2106 will drive without a carburetor. It is there that a mixture of gasoline and air is born, the combustion of which powers the engine. Ideally, the ratio of air to gasoline should be 15 to 1, but an already overworked carburetor may create a mixture of incorrect proportions. This is how it gets into the engine, depleted or enriched, and the quality of operation of the entire car decreases. In this case, there is no need to delay repairs.

What behavior is uncharacteristic of a carburetor:

excessive engine heating;
increased consumption of gasoline;
the engine has difficulty picking up speed or even stalls;
there are failures in the operation of the gas pedal;
black smoke and popping sounds from the muffler.

The above signs fit the description of the situation when air saturated with gasoline enters the engine. If a lean fuel mixture is supplied, the car behaves in the same way, except that, unfortunately, gasoline consumption does not seem to decrease and remains at the normal level.

Which carburetor is better for VAZ 2106

Since carburetors of the SOLEKS and WEBER families were completely copied from foreign-made analogues, their reliability is beyond doubt. It is enough to regulate and clean these units every 60 thousand kilometers, and there will be no problems with the supply of fuel to the engine of your car.

But the most popular are the devices of the OZONE family. They need to be adjusted and cleaned twice as often. In addition, they have many different diaphragms, which often break. The most common breakdowns of melon units are incomplete opening of the second chamber and malfunction of the accelerator pump.

Unstable idle speed 2106

You need to know how to set the idle speed of the VAZ 2106 in order to adjust the carburetor. You can perform this procedure quite quickly with your own hands, if, of course, you have an idea of what a carburetor consists of and the functions of its main components. But first things first, let's start with the saddest thing - the case when suddenly there is no idle speed and the engine starts to stall.

It doesn't matter where you are, at what point! It is important that the program for a small car service is always at hand! And wherever you are, information about business processes and spare parts sales is available. Live easier!

You'll be lucky if this happens close to home. But if you’re on the road, it’s not good enough. On my own behalf, I’ll add that several times I had to remove and disassemble the carburetor while standing on a narrow highway, shying away from passing trucks and highlighting it with a flashlight. A good habit is to take a thermos and a flashlight on the road.

Carburetor 2106, design and principle of operation

The type of this carburetor is emulsion. Fuel enters the carburetor through a needle valve and a special strainer. The valve is connected to the float through a cable, which makes it possible to maintain the fuel level in the float chamber at the required level. Through fuel nozzles, fuel from the float chamber enters the emulsion tubes and wells, where it is mixed with air, which enters through the air nozzles. Next, the resulting mixture enters large and small diffusers through sprayers. Then the emulsion is fed into the hole, which is blocked by the needle of the quantity screw, here it is additionally mixed with air. After this, the mixture enters the intake manifold.

Adjusting the Solex

The main design feature of the carburetor on the VAZ 2106 is the presence of two devices that are independent of each other. The first of them operates at idle (it consists of a vacuum and electric vacuum valves equipped with air and fuel jets). The second consists of two chambers that begin to function when the throttle valve is opened, that is, when the gas pedal is pressed.

And although both systems operate independently, the composition of the mixture in them depends on the level of fuel that is in the float chamber. Consequently, a change in the fuel level directly affects the functioning of the systems, since their adjustment is disrupted - the engine operates unstable at idle and it is impossible to precisely set the idle speed.

Features of choosing IAC manufactured in the Russian Federation

The original product has its own marking, in which the last couple of digits indicate device compatibility. Even and odd numbers are interchangeable. For example, instead of a sensor with 01 at the end of the marking, you can install a device with the last digits 03. The same applies to even numbers: IACs marked 02 and 04 are interchangeable. That is, instead of 01 you cannot put 04.

Recently, a lot of counterfeit products have appeared on the auto parts market, including idle air regulators. Sometimes it is possible to identify them by their characteristic features:

the packaging is not branded - there are no special marks, barcodes, or holographic stickers;
the sticker on the sensor body is yellow and without an outer frame;
the needle has a dark shade;
the rivets on the regulator body do not have heads, the diameter of which should be 3 mm;
the sealing ring is very thin and is black instead of red;
spring – white with sparse winding (should be black);
the body is 1 mm shorter than the original one.

Electrical equipment

The problem of stopping the engine may also be due to a malfunction of electrical equipment. In particular, oxidation may occur at the battery terminals. Whether old cars or new ones, they all need maintenance and careful care. Consequently, the contact deteriorates as the resistance increases, and this leads to the engine stalling. The battery itself may also fail. In the same case, if the generator does not produce the required current, the entire electrical network of the car switches to power from the battery. If you do not immediately see a light on, indicating that there is no charging, the car will continue to move. Given that the lights are on and the ignition system is running, after a while the battery will be completely discharged and the engine will stop. You will have to charge the battery and also completely repair the generator.