How often does it happen that your beloved car (VAZ 2109, 099, 08) flatly refuses to start or stalls on the road? You shouldn’t immediately call gifted craftsmen or drag the poor guy to the service center on a rope. There is only one good news for now. I'll tell you what needs to be done, but only if your hands grow from the right place :).

There can be several reasons for an engine stalling and not starting. Initially, we turn the key in the ignition and listen to see if the starter turns, if not, this is the reason, but this is a no brainer. If the starter turns, we move on. No matter how stupid it may sound, you need to check if there is gasoline in the tank.

Turn the key and look at the indicator lamp for the remaining fuel in the tank. If you are sure that there is gasoline, go further and check for a spark. Let's unscrew any spark plug, stick it into a high-voltage wire and touch the engine (to ground)...

Here we need an assistant. We put him behind the wheel and let him turn the starter with the key. Is there a spark at the spark plug tip? Hood. No? Badly. The switching unit or its wiring is faulty. It's hard to do anything about it. Try changing the switch. You should also check the spark on the central wire coming from the coil. We check using the same method with candles. No spark may indicate a coil failure.

Let's check the power system. If it's winter outside, water could get into the gasoline supply system and freeze. We check: unscrew the air vent and press the fuel pump button several times. Is it gurgling? Gasoline flows well into the carburetor. No?

Either the above water has somehow gotten into the system, or, more likely, the fuel pump is faulty. Pay attention to the filter fine cleaning. It should be inspected for cracks and damage. You can also look at the hoses through which gasoline flows. Have you checked everything? Is the power system ok?

Next step, candles! We unscrew the candles. All. Let's see if there is carbon on them. A thrifty driver should always have a spare set, working, tested spark plugs. “Spitted” (black candles with carbon deposits and filled with gasoline) are useless to clean with sandpaper and wipe. They need to be heated over a gas stove.

So you inserted the working spark plugs, but it didn’t help? Let's move on to the ignition system. We remove the high-voltage wires from the distributor. By the way, because of the wires, the car may also not start, check them. We look at the distributor cover.

If the inside is chipped or the contacts are scorched, replace the cover. Next we remove the slider. It can also be replaced. Unscrew 2 bolts. We disconnect the wiring from the hall sensor and change the sensor itself. We reassemble everything in reverse order with new parts.

Location high voltage wires on the distributor cap is out of order. The first wire (marked 1 on the cover) comes from cylinder 1 (far left), then cylinder 2, cylinder 4 and cylinder 3 will go clockwise. If you mix up the wires, the car will stall terribly or won’t start at all.

All that remains is to check the timing belt. It is located on the left side, under the casing. Remove and look at the belt teeth. If there is not enough and the belt has slipped, then it needs to be changed. The only question is the consequences. If you have a 1.3 engine, then the valves may be bent (don’t even try it yourself). If it's 1.5 then it's probably okay.

Well, that’s basically the whole system. Everything should start. If not, you can, with a pure soul (I did what I could), take it to third-party masters. If the car does not idle, check the solenoid valve. It is screwed into the carburetor on the right side. Remove the terminal.

Turn the key to turn on the ignition and touch the terminal to the valve several times. Are there any clicks or spark? ok, it works. Just unscrew it and blow out the nozzle located at the end. The valve must be screwed back by hand, preferably without overtightening it.

Also, unstable idling or jerky movement can be a consequence of an unadjusted carburetor, as well as spit-stained spark plugs (from an over-rich mixture).

Good luck on the roads.

>In the article "" we examined in detail the reasons why the VAZ 2108, VAZ 2109, VAZ 21099 carburetor does not start. However, injection VAZ 2109 have their own characteristics, so this article is intended to help the owners of the VAZ 2108 2109 21099 injector when their iron Horse stopped starting. The differences in troubleshooting for carburetor and injection engines are very significant. So, the owner of a carburetor VAZ 2108, VAZ 2109, VAZ 21099 can eyes closed determine why his car won't start. However, if you transfer him to an injection VAZ 2108, VAZ 2109, VAZ 21099, which does not start, then the person will not know what to do.
It’s understandable: an electric fuel pump, an ECU, a bunch of sensors, injectors, an ignition module. Without knowing what and in what order to look, a situation where an injection engine does not start can quite frighten the car owner.
Here, as in diagnosing any malfunction, a clear, well-thought-out sequence of actions to identify the malfunction is important. So let's start, if the engine VAZ 2108 2109 21099 injector does not start, then the old rule applies here: “Either there is nothing to burn, or there is nothing to ignite.” That is, either there is no spark, or the combustible mixture does not enter the engine cylinders.
1) We check if there is a spark. To do this, unscrew the spark plug from the cylinder, press it against the ground and turn the starter. If the spark jumps at the spark plug, then the problem is in the fuel supply system.
However, we must remember that if the unscrewed spark plug is wet and there is a spark, be sure to check the marks.

Mark on the gear camshaft VAZ 2109

Mark on the flywheel of VAZ 2109

Due to the fact that the timing belt slips one or more teeth, the valve timing will be disrupted and the VAZ 2108 2109 21099 injector engine will not start.
If the spark does not jump through the spark plug, the cause may be: position sensor crankshaft(hereinafter referred to as DPKV), crankshaft pulley, ignition module, ECU.
1a) Many people are very afraid of what is in the injector. Yes it's true, incorrect operation sensors can greatly spoil the life of the owner of a VAZ 2108 2109 21099 injector. I’ll tell you one important detail that will immediately make you feel better: VAZ 2109 engine will not start due to a malfunction of one single sensor - DPKV. If any other sensor is faulty, the engine will start, but its operation will be incorrect - it may stall, not develop power, increase fuel consumption, but it must start.
So, we check the DPKV VAZ 2108, VAZ 2109, VAZ 21099, the integrity of its connector and the wiring to it. Very often the DPKV connector rots, since moisture and dirt can get into it from below, although the sensor itself is very reliable. If there is a suspicion that the DPCV is faulty, it can be removed and easily checked. Apply power to it from the battery and bring metal to its working area. When the metal approaches, the output voltage of the sensor should increase; when the metal is removed, the output voltage of the DPKV should be close to zero.
If the DPKV is faulty, we change it and try to start it. If it doesn’t start, we move on.
1b) Crankshaft pulley. What could be the problem here? The problem is that part of the pulley with teeth on the DPKV is rubber, and it can either fall off or spin.

Part of the VAZ 2109 pulley with teeth for DPKV fell off

Accordingly, the DPKV does not operate when the crankshaft rotates and the ECU does not issue a spark command to the spark plugs. You can simply remove the timing belt cover and visually verify that the crankshaft pulley is spinning and is in good working order. At the same time, check the integrity of the timing belt and timing marks.
1c) The reason that there is no spark may be a malfunction of the ignition module. It is also necessary to check the connector on the ignition module for its integrity. If possible, you can take the ignition module from another car and check whether the engine starts or not.
1d) If the ECU is faulty, the engine will naturally not start.
1d) Lack of contact in the electrical wiring. All devices may be intact: the ECU, the ignition module and all the sensors. But there will be no contact between them in the wiring, for example, a wire is torn off or the connector is oxidized.
2) If there is a spark, but the engine does not start, it is necessary to check the engine power system.
Check if fuel is supplied to the injectors:
2a) Does it download? fuel pump?

The VAZ 2109 with an injector has an electric fuel pump

The fuel pump VAZ 2108 2109 21099 injector is electric, it is immersed in the car’s gas tank. When the ignition is turned on, its operation should be heard. To check whether it is pumping fuel or not, you can loosen one of the fuel supply pipes, place a container under it and turn on the ignition - gasoline should flow from the pipe.
The pressure in the fuel rail of a VAZ 2109 with an injector can also be measured using a conventional pressure gauge. The pressure regulator installed on the fuel rail has a special outlet for connecting a pressure gauge. We connect the pressure gauge and look at the pressure in the fuel line. It should be about 4 atmospheres. If the pressure gauge does not show pressure, then the fuel pump is not working.
2b) If the fuel filter is clogged, the pump will not be able to provide the required fuel supply to the vehicle injectors.

Fuel filter VAZ 2109

Again, you can tell whether the filter is clogged or not using a pressure gauge connected to the tap of the pressure regulator on the car’s fuel rail.
2c) Clogged injectors.

Dirty injection engine injectors

When the injectors become clogged, they either do not allow fuel to pass through at all, or the fuel flows in in smaller quantities and does not spray, but drips. Due to clogged injectors, it may be difficult to start the VAZ 2108 2109 21099 injector engine in cold weather. As a rule, such a car does not develop full power while driving.
2d) Fuel may not be sprayed by the injectors if they do not receive opening signals from the ECU. You need to make sure that the chips are installed on the injectors and that all wires are intact.
3) When starting a cold engine in cold weather, especially injection engines VAZ 2108, VAZ 2109, VAZ 21099 a phenomenon such as slipping or cutting of the timing belt teeth often occurs. In this case, the valve timing of the engine is disrupted and it cannot start.
To make sure that the timing belt has not slipped, you need to remove the belt cover and check the marks on the camshaft wheel and on the flywheel shaft. If everything is in order, we move on.
4) If the spark plugs VAZ 2108 2109 21099 are flooded, then they need to be dried. A spark does not form on a flooded spark plug. If you unscrew a spark plug and it is all wet, then you need to unscrew all the others and calcine them on gas. If they are flooded again, you need to look for the cause elsewhere.
5) Some VAZ 2108 2109 21099 injectors cannot start in cold weather with the engine temperature sensor connected. This is probably a feature of the firmware or something else. You remove the temperature sensor chip, the engine starts with difficulty, but it starts. When connected - no.
This feature can confuse anyone: there is a spark, and the spark plugs are wet, and the belt has not slipped, but the car will not start. I removed the temperature sensor and it started. This situation, of course, is the exception rather than the rule, but it is better for the owner of the VAZ 2109 to know about it.
6) This is also a rare situation, but it happens. Shedding of the catalyst in the car muffler. In accordance with environmental requirements, a catalyst is installed in the muffler of VAZ 2108, VAZ 2109, VAZ 21099, which reduces emissions of harmful gases into the atmosphere. If this catalyst crumbles inside the muffler, the exhaust gases will be difficult to exhaust and the engine will either not start at all or will stall. To eliminate this point, you simply need to loosen the fastening clamp between the catalyst and the muffler so that the exhaust gases exit after the resonator.

The problems described above are the most common reasons why the VAZ 2108, VAZ 2109, VAZ 21099 injector engine does not start, but you should remember that there are special cases in which only a service station can help.

Does your beloved old Zhiguli often present problems, refusing to start, does its engine stall at the most inopportune moment? Common situation. Let us first consider the problem from the theoretical side. For operation of any engine internal combustion you need the presence of 3 factors - air, fuel and a spark that ignites the air-fuel mixture sucked into the cylinders.

Some practical advice For experienced motorists:

• To begin with, by turning on the ignition, we determine whether the starter is spinning. If not, then it’s a no brainer what’s going on. When the ignition is turned on, a charged battery emits a characteristic click of the retractor relay.
• Afterwards, if the starter passes the test, we check the fuel availability sensors, or better yet, look into the tank itself.
• One can no longer cope alone. We find an assistant to crank the starter using the ignition key and, having unscrewed any spark plug with the necessary precautions, poke it into the high-voltage wire and short it to ground, holding it a centimeter from the target. There is a spark - great. The carburetor does not start, the starter turns, there is a spark. Using the same method, we check for the presence of a spark on the central wire and, if there is, then everything is fine.
• The absence of a spark in the first case means an unambiguous replacement of the commutator, and in the second - a malfunction of the coil (“the woman” fails very rarely, but this also happens).

Lack of air and clogged filters

2109 carburetor does not start, there is spark, there is gasoline. In winter, the presence of gasoline does not mean it will enter the carburetor, since the water could freeze. We get to the gas pump and press the button. If it doesn’t gurgle, this means that the water is frozen; otherwise, it means that it is not frozen and fuel is flowing. The fuel pump or fine filter may also be faulty, or the hoses may be cracked. After removing the air filter cover, inspect inner space to check its cleanliness and try to start it.

Engine without cover. If it starts, then there is no air access to the carburetor (the filter is clogged and/or filled with oil). If there is no effect, then we continue testing. If the fuel pump has not failed, air may not be passing through float chamber or the needle valve is stuck. After unsuccessfully blowing with compressed air, it is necessary to blow through with the carburetor cover removed, and if there is still no effect, then the needle valve must be replaced. You can also check and blow out the nozzle by first unscrewing it (you need to screw it back very carefully so as not to “tighten it”). There is still a way to revive the engine. Having removed the hose, we spray a little gasoline into the 1st chamber, into the one that is closer to the car interior.

Spark plugs are faulty

If everything is in order, then we move on to the next stage of testing, namely the candles. We unscrew them all and inspect them for the presence of carbon deposits and/or fuel residues. If there are any, then you need to calcinate them with pliers over a gas stove or, in its absence, in another flame of any burner. We insert spare “working” spark plugs.

Malfunction of explosive wires

We check the wires, as they can also cause malfunctions. If the inside of the distributor cover is chipped and the contacts are scorched, then it needs to be replaced. After removing the slider, having first checked that the drum does not touch the Hall sensor, unscrew the bolts and disconnect the wiring and replace the sensor.

The wires on the distributor cover go in the following order (incorrect order of connecting the wires can also cause the car to not start):

• The first (it is marked on the cover) comes from the far left and also the first cylinder.
• Further, if you look clockwise, the second cylinder follows, and behind it the 4th.
• The far right wire comes from the third cylinder.

Under the casing there is a rubber timing belt. If the teeth (one of them) are worn down, and even more so if there is a tear on the belt itself, then replacement is needed.

If you still have questions about why your 9 won’t start, I recommend watching this video:

Alternative ways to start a car

If after one of the above operations the car starts, then be glad that you dealt with the breakdown yourself. If nothing helps, then you need to take the car for repairs. But you still have to get to the car service station, and in this case the “nine”, like all carburetor cars, is unique. A modern foreign car is nowhere without a battery, but a Zhiguli, if started from a pusher or pushed downhill, can go as long as it wants (the main thing is not to turn off the engine).

The process looks like this:

• The ignition turns on.
• We push the car so that it reaches a speed of at least 5 km/h.
• The clutch is depressed and third gear is engaged (of course, any gear will work, but 3rd is best for a “cold” start).
• The clutch is released and when, due to the inertia of the VAZ, its knees turn, the car will certainly start. Then the clutch is depressed and third gear is disengaged.

With the onset of winter, most carburetor cars bring trouble to their owners. No exception are carburetor vaz 2109, which do not start well when cold. There can be many reasons for such a launch. This article will discuss the most common reasons why the carburetor VAZ 2109 starts poorly when cold.

Before drawing any conclusions, it is necessary to ensure that the driver correctly follows the requirements for starting a cold engine. For these purposes carburetor engines have a manual drive throttle valve. Without using this mechanism, starting the car, especially in cold weather, is quite problematic.

You need to start the engine in the following sequence:

• Open the hood and pump up fuel using the manual fuel pump pedal
• Pull the choke control handle towards you
• Pump gasoline into the manifold using the accelerator pedal
• Without pressing the gas pedal, start the engine

You may not be able to start the engine the first time. But the second time it should. You also need to pay attention to pumping gasoline with the gas pedal. The main thing here is not to overdo it, otherwise you can fill the spark plugs and then the engine will definitely not start. If this does happen and the car does not start, then press the pedal all the way, turn on the starter and, while it rotates, slowly release the gas pedal.

The starter turns poorly on a cold VAZ 2109

This is one of the most common causes of poor fret starting. There are two sides to this: the starter is stuck or the battery is frozen. If everything is clear with the first case, then the second requires special attention.

In severe frosts, it is recommended to bring the battery into the house and charge it, then starting problems will be left behind. But if this is not done, the task may become more difficult. To start, you will need to turn on the low beam for a while - this will warm up the electrolyte. After this, you can try to turn on the starter for no more than 3 seconds. Each new attempt to start the engine must be accompanied by pauses of 30 seconds, 1 minute and 2 minutes. Otherwise, the battery will run out completely and instead of traveling you will have to wait until the battery is charged.

If in summer you can fill in oil with a lower viscosity or 20w40, then in severe frosts it freezes. It becomes very difficult to turn the crankshaft with frozen oil, so the manufacturer recommends pouring it in the winter motor oils with a viscosity of 5w40.

Another solution to this problem is to use preheaters, which are connected to a 220 V network and heat up the antifreeze. Due to the heat transfer of the metal parts of the VAZ 2109 carburetor engine, the oil becomes thinner, and the engine can operate safely even in severe frosts.

If the VAZ 2109 starts poorly not only when cold, but also when hot, then the problem may affect the system. An incorrect advance angle impairs starting properties, making starting difficult.

Typically, startup problems are observed with . In this case, you may notice black smoke coming from exhaust pipe, the electrodes of the spark plugs become covered with black soot, and popping noises are heard in the muffler when you press the accelerator pedal. You can try turning the distributor a few degrees or adjusting the ignition from scratch. The problem should go away.

However, an angle that is too early results in:

1. Detonation;
2. Engine overheating;
3. Leaning the mixture.

Problems of the VAZ engine power supply system

First of all, you need to check the air and fuel filters. If they are heavily contaminated, the engine will have difficulty starting when cold. The design of the nine provides two fuel filters located under the hood and the car and one air filter. If they are intact, then check the operation of the fuel pump.

Try pumping gasoline manually. If it pumps poorly, then the fault lies in the fuel pump.

Next in line is the carburetor. Incorrect adjustment can lead to the car being difficult to start when cold. Revolutions idle move should not exceed 900 and fall below 700. Soot on spark plugs is unacceptable. Otherwise, the unit needs proper configuration.

Gas distribution mechanism

The last thing is the valves. Before adjusting the carburetor, it is necessary to check the clearances in the valve mechanism. This is done on a cold engine, since the metal expands when heated.

Violation in the gaps worsens compression. In this case, not only power is lost, but the starting properties of the car also deteriorate.

These are the main reasons why a cold VAZ 2109 has trouble starting. If none of these tips help, then it is better to contact a specialist.

What to do if your favorite VAZ 2108, VAZ 2109, VAZ 21099 refuses to start? This article will discuss a troubleshooting diagram. As you probably know, for the engine to start and run, three conditions are necessary: ​​air, gasoline, spark. When the crankshaft of the VAZ 2108, VAZ 2109, VAZ 21099 engine rotates, the combustible mixture is sucked into the cylinders (a mixture of air and gasoline in a certain proportion). After closing the intake and exhaust valves at the end of the compression stroke, a spark should appear on the spark plug, igniting the combustible mixture - the engine starts.
Let's consider the diagnostics of identifying a fault along the chain. The entire methodology is reflected in detail in the figure; the text provides the necessary comments on the points.

1) If the starter does not turn the crankshaft of a VAZ 2108, VAZ 2109, VAZ 21099, then check the following: the battery must be charged, when you turn the ignition key you should hear a click of the solenoid relay operating, all connectors must be connected to the starter.

2) If the starter rotates the crankshaft. It is necessary to determine what is not entering the cylinder, a flammable mixture or a spark. First we look for a spark. To do this, remove the high-voltage wire from any spark plug, bring it at a distance of a centimeter to ground and turn the starter.

3) If there is no spark to the spark plug of a VAZ 2108, VAZ 2109, VAZ 21099, check whether the spark is going to the ignition distributor (distributor). To do this, remove the central wire from the distributor, bring it to a distance of 1 cm to the ground and turn the starter. If the spark jumps from wire to ground - the problem is in the ignition distributor: check the slider, clean the contacts.

4) If there is no spark to the ignition distributor, diagnostics of the ignition system is necessary.
There are two options for further troubleshooting:
A) Using a diagnostic device for a non-contact ignition system.
B) Manual fault detection.
A) You have a device, their varieties may be different, but the principle of operation is the same: power supply and operation of the Hall sensor and switch are displayed by lights.

The device is connected to the open circuit of the switch. Remove the connector from the switch and connect it to the device connector. Place the second connector of the device on the switch. Turn on the ignition: the ignition system power light and the Hall sensor power light should be on.

When the starter of the VAZ 2108, VAZ 2109, VAZ 21099 rotates, the following should blink: the switch control light, the pulse light from the Hall sensor.
If the switch control light does not blink, replace the switch.

If there are no pulses from the Hall sensor, disassemble the ignition distributor and make sure that the distributor runner rotates when the starter rotates. If the starter turns, but the distributor runner does not, the timing belt is broken. If the slider rotates but there is no signal from the Hall sensor, replace the Hall sensor.
B) Troubleshooting option without an ignition diagnostic tool for VAZ 2108, VAZ 2109, VAZ 21099. Disassemble the ignition distributor and make sure that the distributor runner rotates when the starter rotates. If it doesn't turn, the timing belt is broken. If the slider rotates, check that the distributor drum does not touch the Hall sensor. Make sure the wires and connector of the Hall sensor are in good condition. If everything is normal, change the switch, the most common reason when there is no spark, the switch burns out. If, even after replacing the switch, a spark does not appear, suspicion falls on the ignition coil and connecting wires. The ignition coil (in popular parlance) fails extremely rarely, but such cases also happen.

Ignition coil

5) If there is a spark, but the engine does not start, remove the cover air filter.

Is the filter clean and free of oil? We try to start a VAZ 2108, VAZ 2109, VAZ 21099 without an air filter cover, if it starts, it means there is no air access to the carburetor, the filter is clogged, the air supply is filled with oil.
6) If it doesn’t start, completely remove the filter with the cap and unscrew the fuel hose from the fuel pump to the carburetor on the carburetor side. We turn the starter - gasoline should spray out. Doesn't it splash? Either the fuel pump has failed, or fuel is not supplied from the tank, if there is any there, of course.
7) If gasoline splashes when turning the starter, unscrew the fuel return hose from the carburetor. Plug the return with your finger and blow into the supply with your mouth. Is air passing into the float chamber? If yes, then gasoline is also passing through, you need to blow out the entire carburetor with compressed air.
8) Is air not passing into the float chamber? Check the carburetor mesh filter. We unscrew it and clean it. Did not help? — The needle valve may be stuck. Tap the side of the carburetor with a wrench or blow compressed air into the feed port.
9) If you still cannot blow air into the float chamber, remove the carburetor cover. Take it in your hands and try to blow again. Air does not pass through - change the needle valve.
10) If air flows through when the cover is removed, but not when it is clamped on the carburetor, the fuel jets are clogged. The carburetor must be completely purged.
11) If after the work done the car still does not start, unscrew the spark plugs.
Look, are they filled with gasoline or not? If they are, you need to dry them. Turn on the gas stove and, holding the pliers, dry the candle over the fire. If the spark plugs are still dry, you can try spraying a few drops of gasoline into chamber 1 of the carburetor (closer to the passenger compartment). The resulting vacuum may pierce the carburetor and the engine will start.

The techniques described above will help you start a VAZ 2108, VAZ 2109, VAZ 21099 in more than 90% of cases. However, in case of problems that are difficult to diagnose (the timing belt has slipped more than a few teeth, poor or absent compression in the engine, the carburetor is not adjusted), only a service station can help you.