The Lada Kalina check light is on: causes, solutions

Many Lada Kalina car owners have encountered the “CHECK” icon lighting up on the instrument panel. This is primarily due to the fact that the engine has failed. Not everyone knows how to determine a malfunction, so in this article we will look at the causes and possible solutions to the problem.

Video about engine malfunctions in which the “CHECK” light comes on on the Lada Kalina:

The video material will tell you what to do when the check engine light comes on, and also indicate the reasons and solutions.

Why does the check light come on on Kalina 8 and 16 valves? What to do and how to act? »

Why does the check light come on on Kalina 8 and 16 valves?
What to do and how to act? Finding out this with 100% accuracy is only possible at the diagnostic station. However, the warning light can also light up due to minor problems in the heart of the car, which can be eliminated independently, without significant costs.

Causes

Why the check light is on on Kalina 8 and 16 valves, as well as the main reasons for this, we will consider further in more detail:

Failure of the oxygen sensor. This element controls the operation of exhaust gases and informs about how much oxygen is not produced during the combustion of the fuel mixture. On Kalina, depending on the number of valves, from 2 to 4 oxygen sensors are installed. It’s not difficult to find out what’s wrong if you have a home scanner (if you have the opportunity to use it, that’s great). The main reason for the malfunction of the oxygen indicator is its contamination with oil waste;
Problems with the sealing of the fuel tank. In this case, air enters the system, which is fraught with additional fuel consumption and, as evidenced by the activation of the check indicator;
. A malfunction of the unit that controls the exhaust of harmful gases is one of the reasons why the check can burn for a long time on both 16 and 8 valve Kalina. It is quite possible that the incorrect operation of the element in question is due to a malfunction of the oxygen sensor;
If the check light is on, you need to check the spark plugs. Failure to replace them in a timely manner or driving on bad fuel leads to the formation of soot and lack of spark. Identifying a problem with your spark plugs shouldn't be too difficult. If there is a noticeable increase in fuel consumption, problems starting the car, malfunction of the catalyst and the check light comes on, you should first check the spark plugs;
Another reason for the Check Engine sensor to operate for a long time is the failure of the mass fuel consumption indicator, as a result of which the car consumes more gasoline.

Let's sum it up

In a modern car, which can also be considered the Lada Kalina, most systems are equipped with sensors with the help of which the on-board module carries out control. If the check light is on, this indicates that a certain type of malfunction has occurred. The cause is found using a diagnostic device. Sometimes the problem when the check light is on requires the connection of more complex scanning equipment to identify the breakdown. In any case, to prevent malfunctions, it is necessary to perform regular diagnostic inspections, which will avoid premature failure of expensive components. Answering the question of how to reset a check, the answer is obvious: it is necessary to diagnose the malfunction and eliminate it.

Why does the check light on Kalina light up?

Why does the car jerk on the gas?
causes and solutions to the malfunction When the check engine light comes on on Kalina 2, the reasons may be different. A comprehensive system test should be carried out to eliminate or confirm all possible faults. It is possible to eliminate the problem and prevent its worsening in the future only by accurately identifying the provoking factors.

Why does the check light on the Kalina car light up?

The check mark on the Kalina instrument panel usually starts flashing in case of engine problems, but these are not all the probable causes. You need to inspect the cap on the fuel tank to make sure it is in order. According to the current conditions (they are specified in the regulations), it must be installed correctly, and then screwed as tightly as possible. If the closure is not tight enough, there is basically no lid, blinking will definitely appear. You need to tighten it tightly and test the signal.

Another option is that the indicator lights up while driving. In this case, the car is stopped and the wires are tested. The test will show the condition of the cable in a free position. It is located in the space under the hood and can be inspected at any time. Additionally, you need to test the terminal - if everything is in order, it is usually open.

Since failures associated with a check may indicate serious malfunctions, a comprehensive check is mandatory

If, after the steps described above, the check engine light on the Lada Kalina error 4 is on, check the ignition system. In this case, testers are indispensable, which will demonstrate the real degree of wear of the wire insulation. Assessing system performance manually is much more difficult. Also, the check light may be caused by incorrect operation of the pumping station. To check it, turn off the engine and carefully evaluate the noise. Ideally, the hum should be smooth, without pauses, clicks, or interference. If there are sounds, strong ones, the pump is removed. Additionally, they do a filter test and remove contaminants. After cleaning is completed, the test is repeated.

Why is the check flashing on Kalina?

If the check on Kalina 16 valves comes on, and the system works without failures, do a step-by-step test. They brake the car and carefully listen to the sounds the engine makes. You definitely need to look at the quality and condition of the fuel mixture and oil. When there are no visual defects, but there are blinking signs, go to a service station to perform a comprehensive check.

You can check the ignition system, inspect the car coil, spark plugs, and determine the quality of the fuel. If you fail to figure out the problem before it is fixed, the error will remain.

Refilling gasoline at trusted places is a guarantee that there will be no unnecessary problems with your receipt.

Why does the check light on Kalina come on and the engine stalls?

The check light on Kalina periodically lights up, then the signal disappears on its own - a bad sign. You can do nothing only if the problem appeared once and then disappeared. Engine tripping should be especially alarming. In this case, the cleaning catalyst is checked - it is likely that excess exhaust has accumulated in it.

Catalytic converters are expensive, vulnerable components. They fail for various reasons. Flashing will begin after the unit has been operating at maximum speed for a long time. The triplets themselves often indicate malfunctions in the cylinders. The problem is likely in only one node or several at once. Often they work, but they do it incorrectly. As a result, problems arise with fuel combustion.

Be sure to check the battery and brushes during a comprehensive system test - this will allow problems to be detected in a timely manner and eliminated. The battery needs to be fully charged, its performance checked, and wear assessed. They do the work on their own or go to a service station. Professional-grade services are affordable and prevent unnecessary costs for emergency system recovery in the future.

This is what the removed dashboard and check indicator look like

Peculiarities

As a rule, stable activation of the check sensor occurs suddenly. During normal operation of all units controlled by this system, the indicator lights up briefly when the engine starts, and then goes out. Prolonged illumination indicates certain problems that are quite difficult to identify on your own. Why the check light is on on Kalina 8 and 16 valves is best to find out from specialists at a service station. This is especially true if the presented DIY troubleshooting methods did not produce results.

Hello, dear car enthusiasts! Probably many of you, while driving your car, have been spoiled a lot by the Check Engine light that lights up, then goes out, or even burns (without any obvious reason) with an “eternal flame.”

What's wrong? Even many auto gurus cannot give an exact answer to the question why the injector light is on. Let's try to dig into the structural principle of the malfunction.

The electronic control unit (ECU) of your car controls the engine through a system of sensors. If the injector light comes on, this means that one or more sensor parameters have failed, to which the ECU reacts accordingly.

Let's consider the functions assigned to the injector sensors. Knowing what the sensors are responsible for, it is somewhat easier to judge the behavior of your car and draw conclusions: either fix the problem yourself, or contact a car service for diagnostics.

The injector light is on: what the sensors say

Crankshaft sensor - determines the speed of its rotation, position, and, consequently, the location of the pistons in the cylinder. The sensor operates based on electromagnetic induction.

If the injector is on because the crankshaft sensor is triggered, the consequences, if ignored, may be as follows: engine idling will be unstable, and if the sensor fails, the engine may stall and will not start at all.

The injector light is on due to data from the phase sensor, which is responsible for monitoring the gas distribution control in each engine cylinder. In this case, the ECU switches from phase injection to backup - the so-called pair-parallel mode.

The operating principle of the sensor is based on the Hall effect; the sensor is located on the front of the block on the input manifold side. Typical signs of a malfunction are increased fuel consumption and hesitant engine starting.

Deciphering codes, checking devices

Timing faults: signs, causes and solutions

Mistake No. 2. Overvoltage. Error No. 3. An error has been detected in the fuel sensor level; it occurs if the circuit is broken.

Error No. 4. Coolant temperature sensor error. Error No. 5. The outside temperature sensor has failed. Error No. 6. The motor has overheated. This happens if the engine overheating alarm is triggered. Mistake No. 7. Oil pressure is in poor condition. Happens if the alert bell is triggered. Mistake No. 8. Problems with the brakes. Happens if the alert bell is triggered. Mistake #9: The battery is dead. Happens when the alert bell is triggered.

To reset all types of errors, press and hold the reset button until all data on the display is cleared. Testing of devices and their combinations is carried out in accordance with technical specifications using special equipment (pulse generator, from a stable power source, etc.). If a short circuit suddenly occurs in existing devices (less than 40-50 Ohms), the maximum temperature indication must prevail.

Diagnostic process

Instrument panel with which you can perform diagnostics

So, diagnostic operations using the dashboard are not complicated and almost every Kalina car owner is able to cope with this on their own. Following the step-by-step instructions described below, you can carry out diagnostics on any generation of VAZ 1117-1119.

Now let's move directly to the process of performing diagnostic operations:

We reset the daily mileage indicator. For this purpose, there is a special button on the instrument cluster. Using the daily mileage button we reset the indicator
Do not release the button and turn to position I. Insert the key into the ignition and turn to position 1
If everything is done correctly, then all the arrows on the instrument cluster will begin to move from the initial position (zero indicators) to the final ones. Instrument arrows move from the beginning to the final control point
Using the button on the wiper switch handle, we switch the information screen.
First of all, the tachometer and sensors are checked for functionality.
In the second case, the software version will be displayed on the screen. Often, as practice shows, this is version 3.0 or 3.2. The instrument panel screen shows the software version (in this case UEr 3.0)
In the third case, error codes that are present in the ECU will appear. Errors received during the diagnostic process. There are 8 and 4 errors in photo 6.
Now let's decipher the errors that can pop up on the dashboard screen:

Decoding instrument panel readings

— the on-board network voltage exceeds the norm;3

- An error has been detected in the fuel level sensor.
Occurs if there is an open circuit in the sensor within 20 seconds. 4
- an error has occurred in the coolant temperature sensor.
Appears if an open circuit is detected within 30 seconds. 5
- an error has been detected in the outside temperature sensor in the car.
If there are no sensor readings within 20 seconds, “-C” appears); 6
- detected;
7
— emergency oil pressure;
8
- error or malfunction of the brake system;
9
- low battery charge;

— determination of an error in a data packet stored in EEPROM.

Now all that remains is to compare all the errors that popped up on the screen with those listed above.

Resetting the daily mileage readings in Vesta

Why antifreeze boils: the main reasons and ways to eliminate them

To reset the readings, use two buttons on the windshield wiper control lever.

Press the up button for a few seconds (the on-board computer goes into editing mode);
Press the up button again until the daily mileage readings are reset;
By pressing the down button we exit the editing menu.

That's all, you can see the reset and settings function more clearly in the video.

Other materials on servicing the Lada Vesta can always be found on our website.

Almost all modern cars, with extremely rare exceptions, are equipped with on-board computers. Some companies use the simplest solutions, others try to provide car owners with the most technologically advanced, informative and efficient car computers.

On-board computers (OB) are designed to display basic and additional information related to the operation of the engine, various systems and auxiliary mechanisms. The data is displayed on a special display. The on-board computer collects information from all controllers and sensors and displays it on the screen.

Tips and tricks

As you can see, if the engine stalls at idle or at low crankshaft speed, the reasons may be different.

At the same time, it is important to understand that malfunctions in the distributor or fuel pump can also lead to disturbances during the operation of the internal combustion engine, but in this case the engine will often fire on all cylinders one by one

In some cases, to solve the problem, it is enough to refuel with high-quality fuel, warm up the engine well, and then drive for 15-20 minutes at high speeds. In others, you just need to clean the spark plugs or replace the armor wires. However, unfortunately, these simple methods do not always work.

Why might the engine vibrate at idle? Causes of malfunction, diagnostics. Tips and recommendations for reducing engine vibration levels.

At idle the speed “floats”: why does this happen? The main malfunctions associated with idle speed on gasoline and diesel engines.

When you sharply press the gas pedal, the engine jerks, jerks and dips appear, the car does not pick up speed: the main causes of the malfunction and diagnostics.

Engine trouble: symptoms. Why does tripping occur and how to find the reason why the motor starts to trip. Checking power, ignition, compression, etc.

Signs of a non-working cylinder (tribbing and vibration) of a diesel engine. Troubleshooting: compression, diesel injectors, glow plugs, injection pump and others.

Failure of the fuel tank, failure of the neutralizer

When the check engine light comes on, the owner of a Lada Kalina with an 8-valve engine first of all aims to find faults directly in the engine. However, the reason can sometimes “lurk” elsewhere. The glow of the symbol is caused by a loss of tightness in the fuel circuit. Even a loose tank cap can cause this situation.

Depressurization of the system involves the penetration of an additional portion of air into the circuit. In this case, a symptom such as an increase in fuel consumption appears, and the correct functioning of the engine itself is also disrupted.

When the owner of a Lada Kalina does not detect any extraneous sounds in the engine or other deviations in its operation, but the lamp on the dashboard still continues to glow, then the first step is to make sure that the gas tank cap is tight. Quite often there are situations in which drivers, in a frantic rush, forget to check that the cap is correctly and securely seated after refueling.

If after such a check the lamp on the dashboard “refuses” to go out, then you need to continue searching for other reasons. What to do when the catalyst “announces” its malfunction? This important component of the exhaust system serves to neutralize the flow of exhaust gases. It is no secret that a huge number of substances harmful to the surrounding atmosphere accumulate in the exhaust system during engine operation. Due to the presence and functioning of the neutralizer, the level of their emissions is reduced significantly.

Among the main signs of a breakdown of the catalyst in Lada Kalina, 2 experts highlight the factor of reduced engine power. This also manifests itself in worsening dynamics.

As already noted, a common reason for the neutralizer to become unusable is the breakdown of the lambda probe in the Lada Kalina 2. Also, worn-out spark plugs can significantly shorten the “life” of the exhaust circuit element considered here.

As a result of the influence of these factors, a significant decrease in the effect of gas neutralization is observed. Oxides accumulate inside the component, which over time leads to overheating and the risk of catalyst destruction. Operating a car with such a breakdown is undesirable, since incorrect operation of the engine will not allow the unit to develop the declared characteristics. Over time, a neutralizer that has become unusable can cause damage to the power plant, so timely replacement of this component is a more rational and cheaper measure compared to engine overhaul. To replace it, you will need to contact a service center, since it is unlikely that you will be able to carry out the repair procedure yourself.

Let us remind you that the keys to a long service life of the neutralizer are:

timely replacement of spark plugs;
use of high-quality fuel;
correct operation of the lambda probe.

Another factor if the check light is on is the failure of the sensor responsible for the mass flow of air sucked into the intake manifold. This malfunction is characterized by a decrease in the engine power level and the failure of the unit to start smoothly when cold.

Why can the mass air flow sensor fail? One of the reasons for this annoying situation is the untimely replacement of the filter element in the air intake circuit. The motor itself is unlikely to suffer from a faulty state of the sensor, other than the indicated loss of power parameter. However, the owner will refuel more, due to the increase in consumption provoked by this fact. The price of the mass air flow sensor is not exorbitant, so it is not advisable to delay replacement. The repair procedure itself is not difficult to perform. This can also be done at the service center during scheduled maintenance.

Video “Disabling the immobilizer unit”

The channel Useful tips from Shurani demonstrates disabling the APS 6 immobilizer unit on Kalina.

There were several reasons why the Lada Kalina does not start, the starter does not turn, and the immobilizer is blinking. There are several reasons and each of them can cause different damage, but we will consider them all.

The video shows a problem with the immobilizer on Kalina:

Lada Kalina check engine light is on, find out the error

Most car owners learn about what a Check Engine is only after they have this problem. Understanding does not solve the problem, but only adds headaches, because there can be quite a few reasons why this light comes on. Sometimes you have to search for a very long time, and in some cases you cannot do without computer diagnostics at all. Today I will try to explain what a Check Engine is, why it lights up and what it threatens the motorist with.

Check Engine indicator “Check Engine” literally translates as “check the engine”, the indicator is located on the instrument panel and if it lights up, it means something is wrong with the engine. The warning light lights up based on a signal from the control unit, which has detected irregularities in engine operation. The very first “checks” were equipped with mini-computers, the main task of which was to control the carburetor, but as in the history of personal PCs, which were also originally intended to perform high-complexity computing tasks, the mini-computer of modern Check Engines has seriously evolved.

What should you do if the Check Engine light comes on?

If the “Check Engine” indicator lights up when you start the engine and then immediately goes out, you have no need to worry, your engine is perfectly fine.
If the Check Engine light comes on and does not go out for a very long time, this is a cause for concern; there is probably something wrong with the engine. However, there is no need to immediately get upset and despair; the reasons for the light bulb catching fire may not be serious, although critical breakdowns are also possible.

1. The “Check Engine” light came on while driving—possibly the cause was a low oil level. In order to understand what's going on, I recommend stopping, opening the hood and listening to the engine. Make sure that the motor runs smoothly and there is no extraneous noise or knocking, also check that everything is hermetically sealed; there may be leaks on the motor housing. If you find any of the above, take corrective measures, but if you couldn’t find anything, I recommend that you seek help from specialists.

2. Sometimes the Check Engine light comes on when the engine is running smoothly. In this case, the reason may be faulty spark plugs, most likely one of them misfires. Also, the cause may be poor quality fuel; as a rule, this can be detected immediately after leaving the gas station; such a “Check” is very relevant for our country...

If the “Check” light is on due to low quality fuel, try to drain the contents of the tank and fill it with normal fuel.
Check lights up due to problems with the spark plugs (cracked insulator, incorrect gap in the spark plugs, carbon deposits, etc.) - check the spark plugs and replace if necessary. If the gap between the electrode is broken, put it in order; the value should be no more than 1.3 mm.
The ignition coil is also often the reason why the Check Engine light comes on - make sure there is a spark, and also check the resistance at the coil terminals with a multimeter (or ohmmeter), the discrepancy should not exceed 1-4 and 2-3.
The oxygen sensor or, as it is also called, the lambda probe, can also be the reason why the Check light comes on; the problem is solved by checking the functionality of the lambda probe. If the sensor is confirmed to be faulty, replace it.
Problems with the catalyst can also be treated by checking and replacing.
Faulty injectors can cause the “Check” to light up. To confirm or refute this version, check the injectors and clean if necessary.
Problems with the fuel pump or fuel filter. This problem is solved by checking the pressure in the rail; it should not be less than 3 atmospheres; if problems are found, replace or clean the filter/mesh or completely replace the fuel pump.
High-voltage wires, as I already said, can also cause problems with the “Check”. To check high-voltage wires, follow the instructions.

If carrying out all the above tests and checks did not lead to anything and you still have not been able to understand why the Check Engine light is on, I advise you to seek help from professionals. At the service station, thanks to modern equipment, they will quickly find the cause and help resolve it, not for free, of course. You may have to fork out money for serious repairs, or perhaps the reason is completely simple and can be solved quickly and cheaply, depending on your luck... In any case, you should not delay, as this can lead to major repairs and more serious expenses.

conclusions

A lit Lada Kalina engine warning light is not a cause for particular concern. To determine the exact problem, you should connect to the electronic control unit and find the true cause of the signal. As practice shows, these are often ECU errors that need to be reset, but this is not always the case.

A couple of days ago I received a question by email from a blog reader with the following content:

Hello! Please tell me - after replacing the thermostat, the next day the engine and gearshift knob began to vibrate. The ignition coil has failed. There was no electricity flowing to cylinders 1 and 4, I replaced it and replaced the spark plugs in one go.

The motor began to work normally, but the indicator on the panel does not go out. I started checking the error codes and got -34-6-8-. I reset everything but the indicator does not go out, I drove a short distance again but no more codes appeared, but the indicator does not go out.

Please tell me where to look for the problem?

As far as I understand the author, the indicator he is talking about is the “Check” light on the instrument panel. The very first advice that I could give to this Kalina owner was to remove the terminal from the battery and wait about five minutes until all the ECU settings are reset, which in very frequent cases helps get rid of this problem. And in fact, after performing this procedure, the "Check" light went out and did not light up again, according to the owner.

A car malfunction is unpleasant. A breakdown will occur unexpectedly if you do not take care of the car and do not heed warnings. One of them is the “Check engine” light. How to understand what the problem is, what it indicates and what to do if it lights up.

How to reset a check on Kalina yourself

It is not recommended to reset errors yourself if the Lada Kalina check engine light is on. The error information will disappear. In a car service, if something happens to the engine after the reset, they will not be able to determine what kind of malfunction caused the engine to stop working. This means that you will have to completely disassemble the motor. It's an expensive endeavor.

However, if the car owner is sure that the wires were simply shorted after washing the car (this happens), then he can do the following at his own peril and risk:

Turn the ignition key, but do not start the engine.
Open the hood and remove the terminal from the positive terminal of the battery.
Wait about 5 or 10 minutes.
Reinstall the positive battery terminal. Close the hood.
Turn off the ignition and turn it on again. Now start the engine and get ready to start driving.

The check lamp should disappear from the panel.

Running self-diagnosis, reading error codes, erasing errors (check engine)

Hello, tell me how to reset the error: Before starting the engine, I disconnected the air flow sensor (the connector on the air filter cover), and then I forgot to connect it and started the engine, after which it shows an error on my panel - the Engine System Malfunction Warning Light (orange) came on. . I turned the sensor back on, but the icon did not go out. How can I reset this error? Thanks in advance for your answer

Try this: To check 1. Turn on the ignition (without starting the engine), count for 3 seconds. 2. Quickly (within 5 seconds) press the gas pedal all the way 5 times 3. Immediately after the last press (release the pedal completely), count 7 seconds. 4.Press the pedal all the way and hold it until the CHECK (MI indicator) starts flashing. 5.Release the pedal and read the codes

four series of 10 flashes code 0000 - no problems detected if, for example, code 0102 - looks like this: 10 flashes // 1 flash // 10 flash // 2 flash. // — pause after reading the last error, everything repeats in a circle until you turn off the ignition.

Troubleshooting methods

Now that all the causes have been identified, we can begin to consider troubleshooting. But, before we begin, it is worth noting that a car enthusiast needs to have an idea of the design features of the engine if he wants to fix the problem himself. Otherwise, go directly to a car service center, in order to avoid other problems that, due to lack of experience, car enthusiasts usually create for themselves.

Sensors

Often, the reason why the check light on Kalina may come on is the failure of one of the sensors. Possible ones that are worth checking right away include: mass air flow sensor, idle speed control, crankshaft position sensor, oxygen sensor and coolant temperature sensor.

But, there is a simpler and more effective way to determine the malfunction of a particular sensor, namely connecting to the electronic engine control unit. Here you can look at the errors and, by deciphering them, determine where the problem is.

Throttle

A clogged throttle valve can often cause the check engine light to come on because not enough air is supplied to the power unit. The solution to the problem is cleaning. This process can be carried out using carburetor cleaning fluid or VD-40 fluid.

The part is removed from the car and cleaned, after which it is installed in place. It is also recommended to check the throttle position sensor, which may have failed.

Injectors

One of the common reasons for the “check” icon to appear on the dashboard is a malfunction of one or more injectors that do not spray the fuel mixture properly. So, it is worth dismantling all the elements and checking them using a special stand.

If there is none, then you can use the traditional method by pouring flushing fluid into the fuel supply pipes and activating the injectors using the battery. This way it will be clear which injector is not working well. But, experienced auto mechanics recommend cleaning and checking the nozzles on a stand, since the effectiveness of the procedure is higher.

Fuel pump and filter

Another cause of the malfunction may be a malfunction of the gasoline pump or its filter. Lack of power or contamination of the filter elements leads to the fact that an insufficient amount of fuel will enter the power unit to form an air-fuel mixture.

The malfunction can be cured by checking the functionality of the gasoline pump, as well as by replacing the filter inside the gasoline pump. It is also worth looking at the fuel filter, which could become clogged when pouring low-quality gasoline.

Air filter

A clogged air filter can cause insufficient air in the combustion chambers. So, to check this element, it must be dismantled, which is done quite simply. By inspecting the filter element, you can find out how dirty it is and whether the product needs to be replaced. So, after replacement, the check signal from the dashboard may disappear.

Spark plugs and high voltage wires

Wiring is also often the reason why the check icon lights up on the panel. This happens when the spark plug is inoperative or there is a breakdown in one of the high-voltage wires.

It is recommended to check spark plugs on a special spark plug stand. But, if there is none, then you can use the generally accepted “old-fashioned” methods. But high-voltage wires are checked using a conventional multimeter, where the resistance along each wire should be about 5 ohms. If a broken part is found, it must be replaced.

Petrol

But, in addition to the above reasons, the problem may lie on the surface. Thus, ordinary low-quality gasoline can cause the “Check Engine” icon to appear on the car’s dashboard. To eliminate the breakdown, it is necessary to drain the low-quality fuel and flush the fuel supply system. But, if you drive for a long time on such fuel, the batteries may fail, which should also be checked when flushing.

Interruptions in engine operation

Diagnostics of the engine condition by the appearance of the spark plugs

During interruptions, the engine idles unevenly, does not develop sufficient power, and consumes gasoline increased. Interruptions are usually explained by a malfunction of the injectors or electric fuel pump, see “Power system”; “Electronic engine control system (fuel injection system)”, spark plugs of one of the cylinders, air leakage into one of the cylinders. It is necessary to find the fault and, if possible, eliminate it.

1. Start the engine and let it idle. Go to the exhaust pipe and listen to the sound of the exhaust. You can bring your hand to the cut of the exhaust pipe - this way the interruptions are felt better. The sound should be even, “soft”, of the same tone. Popping noises from the exhaust pipe at regular intervals indicate that one cylinder is not working due to a failed spark plug, lack of a spark, an injector failure, a strong air leak into one cylinder or a significant decrease in compression in it. Popping noises occur at irregular intervals due to dirty injector nozzles, severe wear or dirty spark plugs. If popping noises occur at irregular intervals, you can try to replace the entire set of spark plugs yourself, regardless of mileage and appearance, but it is better to do this after contacting a car service center to diagnose and repair the engine management system.

2. If the popping sounds are regular, stop the engine and open the hood. Check the condition of the ignition system wiring harness and the fastening of the wire blocks on the ignition coils. If there is damage to the wires, replace the entire ignition system wiring harness.

3. Remove the spark plugs (see “Replacing and servicing spark plugs”).

4. Carefully inspect the spark plugs and compare their appearance with the photographs given in the subsection “Diagnostics of the engine condition by the appearance of the spark plugs.”

5. If all the spark plugs look good...

6. ...check the gap between the spark plug electrodes (with a round feeler gauge only). It should be 1.00–1.13 mm.

7. If the gap differs from the specified one, adjust it by bending the side electrode.

8. Reinstall the spark plugs and coils and connect the wiring harness connectors to them.

9. Disconnect the wiring harness block from the cylinder 1 coil. Start the engine. If engine interruptions do not worsen, replace the spark plug in cylinder 1 with a known good one. Attach the high voltage wire and start the engine. If the interruptions intensify, repeat the procedure sequentially with all cylinders to identify the faulty spark plug.

If, as a result of the measures taken, engine interruptions are not eliminated, check the compression in each of the cylinders (see “Checking compression in the cylinders”). Normal compression is more than 1.0 MPa (10 kgf/cm2), a difference in compression values in the cylinders of more than 0.2 MPa (2 kgf/cm2) indicates the need for engine repair.

LADA (VAZ) cars Repair and diagnostics of VAZ cars. replacing the Kalina camshaft position sensor, adjusting the Kalina clutch, removing the bumper of the VAZ Kalina, the electric motor of the cooling system fan. Kalina, remove and install the rear bumper of the VAZ 2112, the Lada key does not learn, Lada Kalina heater, Kalina controls, Kalina gas exhaust system, VAZ 2112 malfunctions, diagnostics of Kalina steering tips, how to check the removed Lada Kalina controller, VAZ 2112 control panel Contact nkvd site moderator #russia.ru Buy, sell used VAZ, Lada cars. 2010 (C) LADAOMG

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Operating principle of DTOZH

Complex processes of temperature and voltage fluctuations constantly occur inside the motor. When the temperature drops below the permissible level, an enriched mixture is required for normalization. If the scale rises above a certain mark, then, on the contrary, an enriched mixture can lead to damnable consequences for the engine. During normal operation of the DTOZh, all this data comes to the dashboard in an impeccable format, becoming good hints of the car’s wishes addressed to the driver.

But in the event of a break, even the most microscopic one, in the sensor wiring, these measurements are already performed in a broken format. As a result, when this is not necessary, the system supplies an enriched mixture, which causes excess fuel consumption in the engine. How many sensors are there on the Prior? (Solved) - 3 answers. The unit begins to work at an excessive level due to wear and tear, the result of which is a high percentage of harmful emissions into the atmosphere.

Lada Kalina - Car Owners Blog: The “CHECK” light came on. Serious consequences

I didn’t think twice about it, since the car was under warranty, I took it to the official AvtoVAZ service center. There they first reassured me, saying that most likely it was bad gasoline, which is why the light came on. But then they decided to do engine diagnostics. And as a result, it turned out that I had a burnt-out valve on one of the cylinders. I was simply shocked by this statement, since I never spared money for my Kalina - I only refueled with 95 gasoline and always at normal gas stations. But it is clear that at proven gas stations they can fill up with a surrogate. The master told me to take the car to the car wash, after which it would have to have the engine repaired, or rather a valve replaced. I washed my Kalina and drove it into the box; they repaired the engine, probably about 7 hours in time. We assembled the engine, adjusted the valves and that’s it: my car is back in service. Still, I wondered why it could happen that the valve burned out in such a short period of time? It would be fine if I drove on gas, such problems often occur there, but I drive on gasoline and only on AI-95. Unclear.