Check engine light on VAZ 2110 injector 16 valves causes

The engines installed on the VAZ 2110 are electronically controlled and have numerous sensors, information from which is processed by the engine control unit. If there is any problem, the Check Engine light comes on on the dashboard. The presence of such a warning indicates serious engine problems, so it is necessary to take the car to a service center as soon as possible and carry out appropriate diagnostics and troubleshooting. In this article we will tell you why the check light comes on on 8 and 16 valve VAZ 2110 engines.

Possible reasons for the check to light up

It doesn’t matter whether the injector has 8 valves or 16. The information in this section will help identify the problem on both types of engines. First of all, it’s worth figuring out what malfunctions are causing the light to light up. Sometimes you can identify a breakdown without even taking the car to a service center.

Broken spark plugs

A common problem, as spark plugs begin to not work as they should over time. There may be several reasons, but the most common ones are:

1. Carbon deposits have accumulated, causing the spark to not be very good.
2. The gap has changed due to burnt electrodes.
3. Ceramic insulation is broken.
4. Malfunction due to long-term use.
5. Failure of high-voltage wires. The insulation on them may be broken, which disrupts the operation of the system.

To eliminate such problems, you need to change spark plugs and high-voltage wires.

The spark plugs must be unscrewed and inspected for carbon deposits. It is also necessary to check for the presence of a spark: it must be clear and strong enough. It is important that all candles spark approximately equally.

Throttle problems

This option is possible if the machine has been in use for a long time. The reason may be a malfunction of the mechanical part due to wear or carbon accumulation near the valve. Sometimes the opening and closing mechanism itself gets stuck.

The second reason, which is the most common, is failure of the throttle sensor. You can independently determine its malfunction, but it is quite difficult. It is much easier to take the car to a diagnostic shop, where they will check its performance.

Malfunction of the mass air flow sensor

The check engine on the VAZ 2110 very often lights up due to the failure of the mass air flow sensor. This option can even be called a disease of this model, so many people start checking with it. You can determine the problem yourself - gasoline consumption will increase very much.

If the check light is on and the car takes much more fuel than usual, you should immediately go to a car service center and have the mass air flow sensor diagnosed. This breakdown can be repaired quickly enough, and spare parts are inexpensive, so you shouldn’t drive with it and consume a huge amount of gasoline.

Use of low-quality fuel

If the check engine light comes on shortly after leaving the gas station, the cause is likely to be low-quality fuel. Because of it, the operation of the injection system is disrupted, detonation appears, and traction deteriorates significantly. The idle speed may also fluctuate, and failures during acceleration are often observed.

A loose or loose tank cap can also be a culprit.

The engine control unit receives information from sensors about improper operation of the system, and a light comes on on the panel. If this happens, it is better not to operate the car, but to drain the bad fuel and fill it with normal fuel. If the problem occurs on the road, you can drain most of it and add good gasoline. This also helps.

Sometimes you come across fuel of such poor quality that you have to flush not only the tank, but the entire system. If this is not done, the injector may fail, and repairs will cost many times more.

Low oil pressure in the system

This option is also often the cause of the problem. There may be several reasons:

1. Failure to comply with oil change schedules. Over time, the lubricant loses its properties, becomes liquid and becomes heavily contaminated. This prevents the pump from creating the required pressure in the system.
2. Poor quality oil. This is not difficult to determine, because the light will light up shortly after replacing the lubricant.
3. The oil pump is broken or is not working properly. Circulation is disrupted or stops altogether, which is very dangerous. If you drive with such a malfunction, the engine will fail due to overheating.

The channels through which lubricant flows may also become clogged. Most often, the reason for this is untimely oil changes, so you should not ignore the established periods.

Vehicle characteristics

In 2001, the line of the VAZ automobile concern was replenished with the five-door hatchback VAZ 2114. The platform for creating the model was the VAZ 2109. Basically, the car was equipped with 4 cylinder 8 valve engines. The power system consists of an injection mechanism and an electronic control unit.

Engine operation is controlled by special sensors that inform the central module about engine performance. The module processes information and sends an impulse to the devices that need to be activated at the moment:

• prepares the required mixture quality depending on the speed and engine speed;
• distributes the spark among the cylinders in a certain sequence.

During production, the model was equipped with different engines.

Is it possible to drive the car?

Some people drive for months and even years with a burning check, so many people think that there is nothing wrong with this and they can move around calmly if the engine is running. In reality, everything is not so simple. Breakdowns can be different. You can drive with one with virtually no changes in engine operation, but the second will cause big problems after a few hundred or even tens of kilometers.

Therefore, if possible, it is worthwhile to find out as quickly as possible what is causing the light bulb to burn. After this, make a decision about whether it is worth moving by car or whether it needs to be repaired.

How to fix the problem?

First you need to identify the reason why the check light came on. Since there are many options, diagnosis is carried out first. It will help you identify a specific problem in order to understand what needs to be repaired and how. Procedure:

1. You can try self-diagnosis. This function is available in the on-board computer. Everything should be done as described in the operating instructions. There are also error codes that can help you identify the problem. But this method is not very effective; it only helps sometimes.
2. Computer diagnostics are much more accurate. With its help, you can determine the malfunction by code. It won’t be difficult to find a broken sensor or determine problems in the operation of components.

There are many videos on the Internet - they explain the reasons for the appearance of the check and show how to repair it. You can watch this video to better understand the topic.

Source

Why the VAZ-2110 check engine light is on and repairs

Let's consider a VAZ-2110 car with an injector and a check engine light located on the dashboard, indicating problems with the engine. This light comes on if one of the sensors that monitors engine operation indicates a problem. There are several reasons why the “check,” as car owners call it for short, came on, and for an inexperienced car enthusiast it is difficult to determine the problem. In this article, we will look at the common causes of an illuminated check engine light, the consequences and possible solutions.

Reasons for the check engine to fire

If you go back a little in time and remember the early 90s, then this light only signaled that the oil level was insufficient. But since a lot of time has passed since then, and progress does not stand still, this indicator can signal a lot of things due to several sensors connected to the light bulb.

Although there are various possible reasons, one piece of advice is common to everyone: if the check light stays on longer than usual, you need to show the car to a mechanic.

• The first reason, which was already mentioned earlier, may be an insufficient amount of lubricant on the parts. In order to determine the criticality of the malfunction, it is necessary to start the car and by ear determine the presence of extraneous sounds in the engine operation. You should also conduct a visual inspection for damage or leaks that could cause oil loss. If any of the listed problems are detected, the car must be delivered to a service station, and in order to avoid big problems, not under its own power, but with the help of a tow truck;
• the second common problem is gasoline of low quality or simply diluted, and this is a fairly common practice of careless sellers. When using fuel of inadequate quality, carbon deposits form on the spark plugs very quickly, which prevents the normal formation of a spark on all spark plugs. If one spark plug starts to flicker, the sensor will immediately signal this with a “check” light. The solution to the problem is quite simple - you need to replace the fuel with high-quality one. In addition, it is advisable to clean the spark plugs. Advice: do not buy gasoline from unverified suppliers, you will save 100 rubles, and repairs will cost 1,000;
• The third possible malfunction, due to which the VAZ-2110 16 valve check light is on, is a problem in the spark plugs themselves. The problem with the spark plugs will manifest itself when the car is moving, and this is especially noticeable at the beginning of the movement - small jerks will be heard. This can be resolved by simply replacing the faulty spark plug. Also check the gaps on all spark plugs, they should be 1.3 millimeters;
• The fourth problem for which the “check” lights up is a malfunction of the lambda probe. If this sensor fails, the data entering the system that regulates the fuel supply system is unreliable. This can lead to problems such as increased fuel consumption, disruptions in the operation of the catalyst and even its failure, deviations in the chemical composition of the exhaust gases from the norm and other troubles. Incorrect sensor readings may be due to sensor failure or simple contamination, which can be visually distinguished after removing the sensor;
• The fifth possible problem that the check engine “screams” about is a problem with the catalyst. As a rule, it is difficult not to notice, and it appears even before the warning light comes on. Signs of problems with the catalyst are, first of all, a significant decrease in power, poor acceleration of the car, as well as increased fuel consumption. To fix the problem, you should contact a specialist or replace the catalyst yourself;
• The sixth possible problem is a problem with the injectors. If this malfunction occurs, the injectors must be blown out, or replaced if they have become unusable;
• The seventh reason for the light to come on may simply be that the tank lid is not tightly closed, which breaks the seal, and the sensor reacts to this. This can be easily fixed by sealing the tank tightly.

Posts 8

1 Topic by n1k 2014-01-16 20:19:17

• n1k
• New member
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• Registration: 2013-10-11
• Messages: 5 Thanks : 1
• Car: VAZ 2112

Topic: The check light comes on and the car starts to drive very poorly

!!TELL ME WHAT IS WITH THE CAR, SOMEONE MAYBE KNOWS WHAT!! car 2112. 16 valve, 1.6 The problem is this, the check light comes on and the car starts to drive very poorly, slowly, does not accelerate, idling fine. Sometimes the check disappears along the way and the car drives well, but it doesn’t last long, I went in for diagnostics and they said you have 7 errors, all sensors, crankshaft, etc. what are there in short, well, this can’t be, we reset everything and went for a ride until the receipt comes out, in general, the result was that the tank was full of dirt. mesh, top filter and injectors..(there is no supply under cylinder 2 and the computer turns off when it reaches 100 dips (something like that)). I replaced the mesh in the gasoline pump, the fuel filter, removed the tank, cleaned the tank, removed the injectors, washed them with my own hands (carbclean + syringe, Akum) I can’t say that all injectors had the same injection. but still, it’s not like it’s dripping, it’s blowing quite normally, it seemed to me.) Well, I put everything together, started it up seemingly fine, drove off - good, started to sharply step on the gas, the car starts to twitch. and the check light came on again..(driving seemed better, but still what’s the problem.)

2 Reply from kastet 2014-01-17 17:48:34

• kastet
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• Registration: 2014-01-17
• Messages: 1 Thanks : 0
• Auto: 21124

Re: The check light comes on and the car starts to drive very poorly

Did you measure the rail pressure? I'm afraid to make a mistake, but your rail pressure should be 3.8

3 Reply from sergo9531 2014-01-17 19:38:02

• sergo9531
• Local
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• From: Domodedovo
• Registration: 2014-01-12
• Messages: 578 Thanks : 208
• Auto: 21114

Re: The check light comes on and the car starts to drive very poorly

There was a similar problem (except for 7 errors). Troil from time to time. Moreover, there was no connection. Diagnostics showed misfires in the 3rd cylinder. I replaced the spark plugs, everything works, BUT in certain modes (1500 rpm) you let off the gas and it seems to stall (misses in some cylinder), it drives jerkily in traffic jams. And today it started bothering me again. Now I'm blaming the ignition coil (they say it's a problem unit). I need to go for diagnostics, I don’t have time.

4 Reply from n1k 2014-01-18 00:47:56 (2014-01-18 03:32:22 edited by n1k)

• n1k
• New member
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• Registration: 2013-10-11
• Messages: 5 Thanks : 1
• Car: VAZ 2112

Re: The check light comes on and the car starts to drive very poorly

Yes, there are also misfires in cylinder 2, but I checked the entire fuel system, and today I experimented with spark plugs, and I just need good spark plugs. and the problem is solved)

5 Reply from Idol174 2014-01-20 20:41:29

• Idol174
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• Registration: 2014-01-20
• Messages: 2 Thanks : 2
• Car: VAZ 21102

Re: The check light comes on and the car starts to drive very poorly

I had about the same problem. The check light is on (the car does not move AT ALL), the check light has stopped burning - it is tearing the asphalt out from under itself. I changed the injectors, fuel filters, air filter, spark plugs, ignition coil, oil and gas station. I drove faster but the error did not go away. I have a VAZ 21102 with an 8th valve. With a common understanding we reached the knock sensor (on the 8-valve it is located just above the oil dipstick), replaced it and in one fell swoop * tightened the contacts in the Pin. After this the problem disappeared. The machine works fine at all speeds. I have January 4.1, we can say that the machine has no brains)))

Why does the check light on VAZ 2110 light up?

The engines installed on the VAZ 2110 are electronically controlled and have numerous sensors, information from which is processed by the engine control unit. If there is any problem, the Check Engine light comes on on the dashboard. The presence of such a warning indicates serious engine problems, so it is necessary to take the car to a service center as soon as possible and carry out appropriate diagnostics and troubleshooting. In this article we will tell you why the check light comes on on 8 and 16 valve VAZ 2110 engines.

Elimination methods

Different brands of vehicles require the presence of various methods of self-diagnosis, triggered through some special technical measures. In some cars, you can find out why the check engine light is flashing by turning the key and pressing the gas pedal a certain number of times. Other vehicles are equipped with an on-board display, which displays information about all violations of the propulsion system. If the check light is on on a VAZ car, the driver will need to close certain contacts in the diagnostic connector.

An excellent option to help determine the reason for the activation of the Check Engine light in almost any type of car is to use specialized equipment. The OVD-2 automobile scanner, which can be purchased at almost any specialized center, will help to regularly check engines for any malfunctions.

The most accessible way to reset errors in a vehicle’s on-board computer is to disconnect the terminals from the battery for 1-2 minutes. After carrying out such activities, the memory of the electronic unit will be cleared, and the indicator will stop lighting by itself.

Broken spark plugs

If the check engine light comes on on the dashboard of your VAZ 2110, first of all you need to pay attention to the condition of the spark plugs and high-voltage wires. Over time, the spark plug gap changes, resulting in a lack of spark in the cylinders, and the corresponding sensors determine whether there is a problem. That is why, as soon as such an alarm lights up, it is necessary to check the spark plugs for the presence of a spark. The car owner should also inspect the condition of high-voltage wires, which may have mechanical damage, which leads to improper operation of the power unit in the VAZ 2110. Remember that the spark plugs must be changed regularly, which will help avoid such problems with the car engine.

Motor trouble: signs

If the engine starts to stall, the check engine blinks. But the indicator does not always work, so other signs of malfunction must be taken into account. For example:

engine vibration increases. This is very noticeable at idle and cold speeds. If this phenomenon becomes permanent, then one of the cylinders has failed. But such damage occurs gradually, so not everyone detects it in time. This method is used in later stages of breakdown; spark plugs have changed color. If you remove them, you will notice that the head has become dark. This is due to carbon deposits and soot due to the lack of ignition of the mixture. This indicates obvious problems

Even with prolonged use of candles, their color changes slightly, but there is no soot; fuel consumption has increased - you need to immediately pay attention to the engine; The engine has become less powerful, which is noticeable when moving. It operates on three cylinders

Therefore, if at least one fails, the engine does not have enough torque resource; unstable exhaust sound, which is complemented by vibrations in the body; When accelerating or moving evenly, the car began to twitch.

You need to listen to how the engine works. If it starts to stall at medium or high speeds, then the valves are probably not functioning properly. One possible reason is an increased gap between them.

If at least one of the listed signs of breakdown appears, immediate action must be taken. If the engine starts up and the check light comes on, blinks and goes out, the driver may face a more complex problem in the near future. Specialists can fix it. In this case, repairs will be labor-intensive and financially costly.

Damage to the mass air flow sensor

The faulty engine warning light may also come on if there are problems with the air flow meter. Such a sensor (mass air flow sensor) often fails or starts to work incorrectly, which leads to problems with the motor. Problems with the mass air flow sensor in the VAZ 2110 engine can be indirectly determined by significantly increasing fuel consumption. Note that it is not recommended to operate an engine with such breakdowns, so if the Check Engine light comes on and fuel consumption increases, it is best to go to a service center and carry out high-quality computer diagnostics. The cost of spare parts and repair work in this case is not too high, which will allow you to fully restore the functionality of your car.

Check the fuel filler cap

Many drivers, in most cases, when the “check engine” indication appears, will think about serious problems in the car’s engine, but will not even think about checking the tightness of the fuel system, which may be compromised due to a defect or an insufficiently tightened fuel tank cap. This is a very common reason for the appearance of the “Check” engine icon.

Reason for the error: Leakage of the fuel system due to the passage of air through the filler cap of the fuel tank will increase the vehicle's fuel consumption, to which the vehicle's diagnostic system will generate an engine error by turning on the "Check engine" indication on the vehicle's instrument panel.

What needs to be done: If, when the “Check” indication appears, your car has not lost power, and there are no audible signs of engine damage (engine knocking, humming, creaking, etc.), then first check the gas tank for leaks. Your gas cap may be cracked or not tightened enough. If the cap was not tightened enough, then after tightening it all the way, continue driving the car for a while to see if the engine error disappears. To prevent a check engine light from appearing for this reason, check your fuel filler cap regularly. Remember that the cover must be replaced with a new one periodically!

Refueling with low-quality fuel

The Check Engine light may come on immediately after refueling with low-quality fuel. Such dirty and low-quality fuel, entering the engine, invariably causes increased detonation and improper operation of the injection system, and as a result, the engine control unit receives errors from the built-in sensors and a check light on the dashboard lights up. If such an alarm lights up immediately or shortly after refueling, it is most likely due to low-quality fuel. It is not recommended to operate the car in this case. You need to call a tow truck and take the car to a service center, where specialists will comprehensively diagnose the car and clean the fuel system. Otherwise, the injector may be damaged, which will lead to expensive engine repairs.

Problems with the ignition coils

High voltage ignition coils and problems with these components can also cause a warning to appear on the instrument panel. Such problems can be indirectly determined by the characteristic tremors of the car at idle. The car owner can check whether there is current on the coil and whether the contacts of the high-voltage wires are loose. If there are problems with the coils, it is best to replace them as a set. The VAZ 2110 engine has four high-voltage coils, the cost of which is at an affordable level, and every car owner can handle such a replacement.

Lambda probe failure

On 16-valve modifications of the VAZ 2110 engine, a lambda probe is installed, which is responsible for analyzing exhaust gases. Over time, a layer of used oil appears on the surface of such a lambda probe, which leads to problems with the accuracy of the sensor’s readings. As a result, the Check Engine light comes on, and the car must be taken to a service center. It is impossible to independently determine the problem with the lambda probe. Only when diagnosing a car using special equipment can you determine the corresponding error codes, on the basis of which problems with the lambda probe will be identified. This element cannot be repaired and if it breaks, it is simply replaced with a new one.

Using the Scanner

Using a scan tool is the easiest way to reset your check engine light. Here are 5 simple steps:

Connect the scan tool to the OBD connector under the steering column. A laptop or tablet with the appropriate software is installed in the holder; Then turn on the car’s ignition and, accordingly, turn on all the gadgets; On the mobile device, in the appropriate section, by pressing the “READ” button, we look through the engine error codes. We write down the codes with a pen in the order in which they were received. This will be necessary for subsequent repairs.

We delete the error code. Press the “ERASE” button on the scanner. The Check Engine light will turn off when all error codes are cleared. Some scanning tools have many options, such as freeze frame, which captures the sensor readings. When deleting codes, these readings will also be deleted. Note: in some scanners, the option to clear codes may be automatic and use the “CLEAR” or “YES” button instead of the “ERASE” button. Don’t forget to turn on the ignition before clearing codes.

Burnt out catalyst

Problems with the catalytic converter can also cause a Check Engine Light. Such problems can be indirectly identified due to the appearance of an uncharacteristic exhaust sound, while the engine begins to smoke heavily. It is necessary to check the catalyst at a service station and if problems with this unit are identified, it must be replaced with a new one or cut out. It is not recommended to use a car with a damaged catalyst, as this can lead to various types of serious damage, including the need to overhaul the power unit.

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