Why does the VAZ-2109 not start?
Surely every car owner has encountered a problem when his car does not start. it or a foreign car - it does not matter. Everyone has the same symptoms. In today's article, we will look at why the VAZ 2109 does not start (including the carburetor and injector) and how to fix this problem.
Battery
The first thing you should pay attention to is the battery. Especially if the car was in the garage or in the parking lot for more than a week. The battery tends to lose its charge. Especially often this is faced by motorists in winter. In one night, the battery can lose up to 30 percent of its total charge. The solution is to charge the battery. However, there are situations when you need to go right now. There is a way out of the situation. To do this, turn on the headlights of the car for a while (1-2 minutes). In this way, we activate the electrolyte in the battery, thereby increasing the voltage level. When the electrolyte comes into action, the battery warms up and the current increases accordingly. What to do if the injector does not start This is possible even with a charged battery. And the reason for this are the terminals on it. The presence of oxidation and plaque contributes to poor contact, as a result, the VAZ 2109 (injector 8 valves) does not start. The reasons are precisely in the white coating, which must be cleaned with sandpaper. Next, the terminals are put on in place and the car should start successfully.
Ignition
But what to do if even with a charged battery, the VAZ 2109 does not start? The problem should be sought in the ignition system. The first thing you should pay attention to is the distributor and its wires. Symptoms - the starter rotates, sometimes it "grabs", however, it does not start. And the motorist, hoping that the car “is about to start”, turns the starter for 20-30 seconds. And so on until the battery runs out again. This is absolutely impossible to do. The starter must be turned for no more than 5-7 seconds with a minute break. Otherwise, you just put the battery. It happens that the car will not start due to poor spark supply. This may occur due to a breakdown in one of the high voltage wires that go from to the candles. There are only four of them - one for each cylinder. The breakdown is indicated by the presence of sparks at the junction of the candles with the wire. It is especially visible at night. From time to time, small sparks jump around the perimeter of the wire, often blue and white. If so, the element needs to be replaced. The resource of high-voltage wires on VAZ 2109 vehicles is 40-50 thousand kilometers.
flooded distributor
This situation happens after driving a car in rainy weather or after washing the engine. 
Even a small drop of water that has penetrated the ignition distributor can interfere with normal sparking - the slider is not able to generate the spark that is necessary to ignite the mixture. To prevent this, you should not drive through puddles at high speed, and when washing the engine, carefully close all ignition elements, including candle wells.
Coil
If she is alone, she can be diagnosed with a multimeter. The absence of voltage indicates that the element is not capable of delivering the current that is necessary to create a spark in the combustion chamber. If there are two coils in the car and one of them is faulty, the car will work, but one of the cylinders will triple.
Candles
Having removed the armored wires from them (do this very carefully so as not to damage the connectors), use the candle key to take the elements out. 
If they have traces of plaque, are filled with gasoline or are simply dirty, they are the problem. When a large amount of fuel is supplied with a minimum volume of air, the element is not able to ignite the mixture. As a result, the VAZ 2109 (carburetor) does not start - the starter turns, there is a spark. 
The electrode gaps should be checked - they should not exceed 0.8 mm. Also dry the elements and clean with a dry cloth from dirt.
What to do if there is no key?
If not, you can dry the parts in another way. To do this, the car is placed in neutral, the ignition is turned on. Then press the gas pedal to the floor and turn the starter for 5 seconds. Thus, a large amount of air will enter the combustion chamber - the candle will dry successfully. It is important to remember that during this operation, the amount of oil on the cylinder walls is reduced. Therefore, it is not worth abusing this method so that the motor does not work “dry”.
Dirty filter
Its blockage leads to the fact that the VAZ 2109 does not start. And it does not matter whether it is a carbureted engine or an injection engine. Checking the condition of the air filter is easy. Both on the carburetor and on the injection, you should remove the housing cover (the only difference is that on the first it is iron, and on the second it is plastic). Then we take the element out and look at its state. Paper filter elements should be light colored. If there are particles of dust and dirt on them, the air through them is not able to pass into the combustion chamber. From here it turns out that the VAZ 2109 carburetor does not start: the starter turns, there is a spark. In winter, periodically inspect its external condition. Such a filter, as in the photo on the right side, can no longer be used. 
Yes, this will not bring harm to the motor, however, there will be frequent interruptions in work. As a result, the chamber will be filled with a mixture that is too lean - hence the lack of "traction", power, failures in acceleration and high fuel consumption. By replacing this part with a new one, you will immediately get rid of all these problems. By the way, the manufacturer recommends changing the air filter at least once every 10 thousand kilometers. If the car is operated in rural areas, where there are mainly dirt roads, this period should be divided by two. Dust and dirt are the main enemies for the filter.
Circuit breakers
VAZ 2109 cars have a rather impractical location of the fuse box - between the windshield and the engine compartment. All dirt, dust and other deposits accumulate on this block. 
If the lid is not airtight, after rain, moisture can get on the elements, which is why they “short”. The most basic in our case is the fuel pump fuse. If it is burned out, the fuel is not able to pass from the gas tank into the chamber. And no "purge" will save here. In order not to fall into such a ridiculous situation, experienced drivers advise you to always carry a set of new fuses with you.
Valve clearances
On carburetor "eights" and "nines" with a 1.3 engine, there is no hydraulic compensator. Because of this, it is necessary to exhibit every 20 thousand kilometers. “Clamped” valves cannot provide normal fuel inlet and outlet, therefore, engine operation is disrupted - it is difficult to start it. They are set using adjusting and locknuts.
Oil
Due to thick oil, the engine is not able to start normally. This problem is typical for the winter period. Due to thick oil, compression is reduced - the motor is not able to process the mixture. In winter, thick oil flows down and when you try to start, gasoline pours onto it in the upper part of the cylinder, dissolving it and washing it off the walls.
Timing phases
What to do if the VAZ 2109 injector does not start (the starter does not turn - it clicks)? It is worth paying attention to the condition of the timing belt. Perhaps he flew off the labels and the system is not able to work out the phase. 
It is also possible to break it. It is highly discouraged to allow this, especially on engines with a volume of 1.3 liters. On such motors, in the event of a break, the valve simply bends. Therefore, it is necessary to monitor its condition and, in the presence of the slightest cracks, replace it. It can fly off due to poor tension on the roller. Checking the tension is very simple - if the element touches the plastic protective cover, it should be tightened.
Starter
If it does not turn even with a charged battery, most likely it has become unusable. To replace it you need:
- Remove the terminal with the block on the starter relay.
- Unscrew and remove the terminal of the electric drive of the traction relay.
- Loosen the motor protection bolts.
- Tighten all fastening nuts alternately with uniform force. So you reduce the risk of misalignment of the starter.
- Put the terminal on the contact bolt and install all previously dismantled pads.
- Install the original engine protection.
And, of course, the main point when replacing this element is to first disconnect the battery terminal.
So, we found out for what reasons the VAZ 2109 does not start.
