Among the existing reasons why the engine does not start well, it is worth highlighting several:
- Low battery. This is a common cause and usually occurs in winter, when the air temperature is much below zero. In such conditions, a weak car battery very quickly loses its residual charge. This problem can be solved quite quickly. You need to replace the battery with a new one or charge the old one well.
- Fuel pump. With normal starting power from the battery, the car still does not start. The second reason for the problem probably lies in the fuel pump. Your car's engine may not start due to lack of gasoline. fuel system. This may be due to a malfunctioning fuel pump that supplies fuel from the gas tank. Checking this malfunction is quite simple. If there is a spark in the spark plugs, but the engine does not start, then the cause of the downtime is the fuel pump.
- Sensors The next, no less common reason may be crank sensors or camshaft. These devices are similar, but they are located in different places: above and below the car. If the battery is fully charged and the fuel pump is in order, then you need to check the condition of the sensors. You can diagnose the condition of the sensors at a service station or independently. Check if there is a spark at the spark plugs when you turn on the ignition. If there is no spark, the cause may be a faulty sensor.
- Candles. They are responsible for supplying the spark that is necessary for ignition. air-fuel mixture. Candles under constant loads fail, become dirty, and become covered with soot. Therefore, you need to check their condition, remove carbon deposits and rinse them. But it is better to replace them with new ones at the time of checking. If the engine starts, leave them in place. If not, continue searching for the problem area.
- Signaling. In some cases, it happens that a faulty alarm affects the operation of the ignition system. If the cause of the breakdown is not found in the previous elements of the car, you need to check this option. The reason why a car has trouble starting is rarely related to the alarm, but it is still worth checking.
- Gas distribution mechanism. It is difficult to independently diagnose an injection VAZ-2110, so it is better if this work is carried out by service station specialists necessary equipment. To prevent malfunctions of the gas distribution mechanism, do not fill the gas tank with fuel with low octane number. Best option for a VAZ-2110 with an injector it is AI-95, in as a last resort AI-92.
- Ignition. It's possible that your car's ignition is simply faulty, making it difficult to start. In this case, the culprit will be early or late ignition due to vibration. Over time, the distributor cap on the car turns slightly, causing the spark to flow unevenly. This leads to incomplete combustion of fuel in the cylinders, and the engine begins to stall. You can get rid of this problem by rotating the distributor cap counterclockwise.
Patriots domestic auto industry They often encounter a problem: the VAZ 2110 injector takes a long time to start. Let's make a reservation right away - in most cases this is not caused by design features car, and low level prevention by car owners.
As they say, “thunder will not strike...”, in other words, our compatriots prefer to heroically and selflessly eliminate breakdowns, rather than prevent them.
Causes
How long does it take for a VAZ 2110 injector to start? There may be several reasons; they will be discussed in some detail below. Let's list the main:
- failure of the timing belt;
- insulation wear;
- temperature sensor failure;
- interruptions in the operation of the ignition module (its failure).
The list is not exhaustive, but it identifies the main causes of engine starting problems. Analysis gives only the right way to avoid problems - it is enough to carry out timely preventive inspections and replacement of questionable components (for example, sensors are guaranteed to last for 60,000 km. mileage). Of course, this advice is not able to console those who have already encountered a breakdown, but for the future...
(banner_content)
Let's talk about the listed breakdowns in a little more detail. As for the timing belt, everything is clear here - it must be replaced as it wears out.
Wire insulation may be damaged during the operation of the car - for example, the ignition module wire often melts from high temperature(it is located in close proximity to the block head, and it regularly overheats).
There may be other reasons for the violation of the integrity of the insulation. The resulting short circuits prevent the engine from starting - and this deficiency may occur periodically.
Temperature sensor. If there is a problem with this part (and even more so if it fails), testing problems arise on-board computer– he is not able to correctly determine the engine temperature and, accordingly, the required quantity fuel mixture. The only (and least expensive) method of “treatment” is to replace the sensor. You can, of course, test it for functionality, but this requires special equipment.
For a beginner, the best way would be complete replacement kit, people who are not alien to technical skills can try to “revive” the candles - thoroughly wipe them, calcinate them blowtorch and so on. If after replacement the spark plugs are refilled, then there is a high probability that the integrity of the insulation in the high-voltage wires will be damaged.
By the way, with the help of a working spark plug it is easy to check for the presence of a spark: you need to place the spark plug on the ground of the car with a metal surface and start the starter. The absence of a spark indicates problems with the power supply, but in a positive case, you need to continue diagnostics.
Let us mention one more reason for the malfunction.
What is the reason why the injector takes a long time to start? The problem may be caused for various reasons, because the engine takes a long time to start not only when cold, but also when hot. Could this mean that the starter rotation time has nothing to do with temperature or not?
Symptoms
ATTENTION! A completely simple way to reduce fuel consumption has been found! Don't believe me? An auto mechanic with 15 years of experience also didn’t believe it until he tried it. And now he saves 35,000 rubles a year on gasoline!
The approximate time that is considered long and for which the engine starts is 5 or 8 seconds. In this case, there is definitely a twitching in the first seconds internal combustion engine operation. At times it seems that the engine is operating on only two cylinders, and not four.
If you press the accelerator before starting, the start will be faster. But at the same time, fuel consumption and engine warm-up time will increase until the speed drops to normal. Another inseparable companion of such a situation is black exhaust.
Obviously, black smoke from the muffler directly indicates that the fuel is not completely consumed and remains in the cylinders.
Diagnostics
So, to determine the specific reason for the long start-up of an injection-injected internal combustion engine, you should start with a high-quality diagnosis. Usually, they check the compression in the cylinders. Its values must be within 12 atm for this to be considered normal. In this case, there should be no deviations between these indicators in each of the cylinders (maximum - 1 atm).
Then in mandatory spark plugs are replaced. This will have an effect on the engine and it will now start much faster. However, if everything is not in order with the motor, then the normal starting time will last only 1-2 days.
Therefore, high-voltage wires should also be diagnosed. Diagnostics will make it possible to find out whether the cables have a breakdown, which is clearly visible by the spark coming out at night. This is done as follows: the car starts in the dark, at the same time you need to monitor which wire sparks.
The ignition coil also needs to be checked. Many experienced drivers They do this: they install a known good and new module instead of the original one, then check the engine starting for several days. If everything is normal, the start-up does not take long - it means that the whole problem was in the bobbin (ignition coil).
If there are no changes, the test continues. This time you should test all filters, including the air filter. Next is checking and replacing all sensors and regulators. Pay special attention to the mass air flow sensor.
The next stage: testing various connections, checking the wiring for good contact, cleaning the masses and flushing the throttle assembly.
If nothing changes again, then it is recommended to check the engine fan relay. It is often possible due to this similar problems with start-up on a fuel-injected internal combustion engine. You can test the relay if you remove the wire from the temperature controller installed on the thermostat.
The fan should turn on after these steps. However, after measuring the resistance value on a warm internal combustion engine, the system can produce low temperature data, although the temperature inside the engine is clearly more than 90 degrees. Why is there such a difference? It turns out that this may well be a bug in the DTOZH, which for some reason was not checked earlier. It must show the real coolant temperature, otherwise chaos will begin in the system, and it is not surprising that the engine takes so long to start.
About DTOZH
In general, temperature sensors power unit- these are the most important regulators injection engine. There are two of them on it. One is located directly in the cylinder head, it displays the temperature value on the instrument panel.
The second one is located in the thermostat, and provides data on the temperature of the control unit of the power unit. Based on the results obtained, the control unit regulates the fuel supply - it delivers it to cold ICE more fuel, and when hot - less. In addition, it is the control unit that regulates the OZ, influences the ignition of the fuel assembly, and activates the coolant fan if the liquid temperature rises above 100 °C.
Obviously, with faulty DTOZh there will be difficulties in the operation of the motor. However, this applies more to the DTOZH, which provides information directly to the block. For example, if the DTOZH is faulty, it will give false values about a cold engine, although it is already boiling. The supply of fuel to the cylinders will increase, because this is provided by the system. Let's say you drove for a long time, then stopped and went into a store. Now starting the power unit will cause obvious displeasure, since it will take a very long time to start due to data failures and oversaturation.
At the same time, the SOP, which is responsible for the ignition of a fuel assembly that is clearly over-enriched, changes greatly. As a result, the fuel will evaporate intensively, and the concentration of gasoline in the fuel assembly will be so high that the mixture will hardly ignite due to the small amount of oxygen.
It was said above that when you press the accelerator pedal, the startup time will be noticeably reduced. Now it becomes clear why this happens. By pressing the gas, we add oxygen to the fuel assembly, and the fuel ignites faster.
Thus, by replacing a faulty DTOZh, you can solve not only the problem with long-term starting the internal combustion engine, but also other difficulties relating to the operation of the engine and its cooling system. The engine, after replacing the faulty DTOZH, will add stability, throttle response and power.
DTOZh replacement procedure and timing
The procedure for replacing the DTOZh may differ depending on the car model. At the VAZ, to carry out the process, you need to prepare several tools, including the obligatory set of wrenches.
According to the classic scenario, the coolant will have to be drained, otherwise replacing the DTOZH cannot be called correct. Although there are several replacement options that do not involve draining.
As mentioned above, one of the DTOZH is located in the thermostat. It screws in from the side. The second is located a little lower, wrapped in the cylinder head.
A little about the timing of replacement of DTOZH. If we are talking about a regulator that goes to the pointer, then it must be replaced at the very moment when the temperature values go astray. This is easy to check: for example, at cold engine The coolant needle tends to the red zone or just wanders. This is an error and requires correction, i.e., replacement of the sensor.
In some cases, it also happens that it is not the regulator itself that is to blame, but the wiring or contact. You need to check everything, and only then decide whether to change it or not. Testing the wiring is also easy: the wires are disconnected from the DTOZH, the ignition is turned on and a short to ground is made. If the arrow jumps up, then everything is in order with the wiring.
The second DTOZH changes if the machine itself is not working properly. For example, revolutions at cold engine do not increase, but when hot they reach a value of 1500 rpm. Fault number 2 can also be judged by the cooling fan, which turns on too early or does not do so at all.
Temperature controllers that have been removed are easiest to check. They must be immersed in boiled water heated to certain values, then connect an ohmmeter to measure the resistance coming from the DTOZH.
The VAZ 2110 8 valve car (injector) is very popular in Russia. Special problems This machine does not cause any problems in operation. But there are times when a VAZ 2110 8 valve (injector) does not start. What to do? Today we will try to answer this question.
Battery
The first thing you should pay attention to is the battery. Open the hood and see if the terminals are tight. The banal reason that the VAZ 2110 8 valve (injector) does not start is a poor fit of the positive or negative terminal. But you shouldn’t exclude the possibility of the battery itself being discharged, especially in winter time or after long downtime. You need to measure the battery voltage. If it is below 12, it should be charged. Normal starting current the battery produces at 14-14.5 Volts. Helpful advice from experienced motorists - in winter, remove the battery at night and store it at home. This way you have a better chance of successfully starting the engine. You will spend much less time than if you tinker with charger(especially if the car is in the yard and not in the garage). And when the car sits for more than a week, remove one of the terminals from it. Some elements can work constantly and reduce the voltage a little.
The starter doesn't turn over
What to do if the battery on a VAZ 2110 8 valve (injector) is normal, but the starter doesn't turn?
One of the reasons for this phenomenon is the relay. When starting, listen for clicking sounds. If they are not there, the relay has failed. Sometimes it shorts to ground - move it and the problem will solve itself.
Fuse
It would be a good idea to check details such as fuses. VAZ 2110 injector 8 valves may not start due to burnt elements. Open the fuse box and check their integrity. There is a thin wire running through the center - if the current is above a certain value (5, 15, 20 Amperes), it burns out.
In our case, it could be the fuel pump fuse. If it doesn't hum, that's definitely the problem. Often replacing the fuse will make it work again.
Candles
If the ignition is on (VAZ 2110 injector 8 valves included), the battery is charged and the fuses are intact, you need to check the spark plugs. This is one of common problems which happens on injection engines. For some reason the car won't start, and gasoline continues to flow into the combustion chamber. As a result, the spark plugs become flooded with fuel. And instead of producing a spark, the flammable mixture extinguishes the candles. They become wet.
The spark misses the electrode and ignition does not occur. Advice from experienced motorists: when turning the ignition key, you need to press the accelerator to the floor. This will dry out the combustion chamber - more air will enter it. If after three to five attempts you are unable to start the engine, do not discharge the battery. To check, we need to unscrew the spark plugs. Here you will need a special hex wrench. It has a different diameter for each candle model. First we shoot high voltage wire. This must be done very carefully. If you pull it by force, it will break and it will be impossible to repair it. Rotate it clockwise and counterclockwise and pull it slightly towards you (at the base). We unscrew the element and look at the electrode. If the end of the candle is wet, and it itself has a characteristic smell of gasoline, it means it has been “flooded.”
How to dry a candle?
As we said earlier, you can start with the gas pedal depressed. But this doesn't always work. They may have an oil coating or carbon deposits on them. So, we take the unscrewed candles to a warm room. Be sure to pay attention to the color of the electrode. If it is red, it means you have used fuel with a lot of additives. They not only kill candles, but also oxygen sensors. VAZ 2110 8-valve injector with a black coating of spark plugs indicates that oil is entering the combustion chamber. These could be burnt rings or valve stem seals.
But whatever the deposit, the candle must be dried and treated in acid. It won't corrode the electrodes - on the contrary, it's even better. If there is no time, we wipe it from plaque and gasoline and install it in place. Often the spark does not reach the electrode due to carbon deposits. Therefore, the VAZ 2110 8 valve (injector) does not start.
We look at the sensors
Sometimes a car can't start because the electronics aren't working properly. If the car is faulty crankshaft sensor, This serious problem. With such a malfunction, the car cannot be started under any circumstances. The electronics cannot fix the position of the shaft and causes the engine to fail.
How to check it?
For this we need a multimeter. We measure the resistance of the crankshaft sensor coil. It should be between 500 and 700 ohms. On the multimeter itself, we set the limit to 200 millivolts and attach the probes to the sensor outputs.
We pass a steel object several times in front of the core. If the element is working, it should recognize it, and the multimeter will show the readings described above. If there are none, the sensor has become unusable. It cannot be repaired - only replaced.
Filters
It happens that the car stops starting due to a dirty filter. There are only two of them. These are fuel and air. You need to check both, but first the last one (since it is easier to remove). If its condition leaves much to be desired, it needs to be replaced.
In this case, air is not able to enter the cylinders, which is why there is a lot of gasoline in the chamber and floods the spark plugs on the VAZ 2110 8 valves. The injector may also fail due to poor fuel supply. In this case, you need to replace gasoline filter. When purchasing, please note that there are carburetor and injection filters. They are easy to confuse, and they are designed for different pressures.
Nozzle
The main difference between injection and carburetor system power supply is the lack of injectors for the latter. The mixture is prepared under high pressure. If the injector does not produce it, the car will start poorly and run unstably. Because of low quality fuel she gets stuck. Moreover, a dust particle larger than 10 microns in size is sufficient for this. How to check? If the engine still starts, listen to the engine. If it triples and the injector on this cylinder is cold, it means it has become unusable. You can clean it of dirt using ultrasound. Performed this procedure at a specialized stand.
Poor starting and boiling
In this case, the reason lies in the coolant. Check its level. If necessary, dilute with distilled water. However, mix different brands no antifreeze needed. It may foam, which will further accelerate overheating.
Might break and thermostat. VAZ 2110 The 8-valve injector is equipped with a two-piston element. It's very easy to check. To do this, you need a burner and a pan of water. Place the thermostat in the container and wait for the water to boil. If bubbles appear and the piston does not move, it means the element is faulty. The temperature at which it should operate is indicated on the metal body of the thermostat. The element cannot be repaired - it must only be replaced. As a result, the system is unable to regulate operating temperature antifreeze. The coolant moves only in a small circle. But the car may start poorly (every once in a while) due to an incorrectly adjusted ignition. Most "ten" cars have a distributor ignition. Here you need to set the correct lead angle.
Conclusion
So, we found out why the VAZ 2110 injector car does not start. During operation, follow the regulations for replacing consumables. Fuel and air filter must be changed after 40 and 10 thousand kilometers, respectively. Spark plug serve from 20 to 40 thousand. It is recommended to change the battery every five years, and, if possible, “throw off” the terminals and store it warm. And antifreeze should be changed every two years. Over time, it produces salts and precipitates, which settles on the walls and interferes with normal heat removal. If you keep your car in good working order technical condition, you are not afraid of problems starting the engine.
