All modern cars are filled with electronics, and, unfortunately, every part can sometimes fail. Probably, many car owners know firsthand about the problem of a lit check engine light (check engine light sensor). Naturally, any deviation from the norm slightly alarms a person, and therefore this article will discuss the causes and ways to eliminate this problem.
Typically, when the ignition is turned on, the engine warning light comes on. If there are no problems in the operation of the car, the light should go out within a few seconds after the engine is fully started. However, it also happens that the check engine light does not go out or lights up suddenly.
If the engine warning light sensor comes on, then for some cars this is a warning sign, and it is necessary to urgently find out the reasons for the appearance and take measures to eliminate them. This can be done by going to a car repair shop or diagnosing your car yourself and fixing the problem. However, it is better to do this if the driver understands technology and has experience in car repairs.
On the Lada Granta, the check engine light comes on when errors or malfunctions in the engine are detected.
Many modern cars have a complex mechanism, and the engine check can respond to engine speed, the composition of the working fluid, fuel consumption, and ignition. Therefore, it will not be possible to quickly name the cause of the failure, especially if you lack skills and experience.
Common causes of check engine light on Lada Granta
As a rule, a glowing check on the screen can indicate both minor problems and various device errors. The most common reasons for an illuminated check engine light are:
- low quality fuel. This is a fairly common reason why the check engine light comes on. To solve the problem, you need to drain the old gasoline and fill in new one. Then check the indicator panel, and if the check stops lighting, then this was the reason. If the check does not clear, this may indicate that there is another problem;
- malfunction of the fuel pump or fuel filter. In this situation, in addition to the lighted check, there will be problems with starting the engine. Also, a clear symptom will be “floating speed” or “dips” when pressing the accelerator pedal;
- clogged fuel injectors. A very common reason why the check engine light comes on. The problem is solved by cleaning the injectors, but this must be done only in a car repair shop, since a person without experience can only cause harm and completely disable them;
- Air filter contamination. This problem can be solved in the same way as the previous one, by cleaning or replacing the filters;
- ordinary glitches in the operation of electronics. It also happens that there are no significant problems in the car, but the check engine light comes on. In this case, the cause is likely to be short-term and minor malfunctions in the vehicle's electronics. The problem can be solved by removing the terminals from the battery;
- catalyst clogging. The check engine light may also come on if the catalyst is clogged. The problem can be solved by replacing the exhaust system or cutting out the catalyst from it;
- low oil level. If the check engine light comes on while driving, then it is necessary to determine the oil level. In this case, the motor will operate without unnecessary noise or knocking. It is also worth checking the engine housing for leaks;
- faulty spark plugs or high-voltage wires. In the case when the engine is operating properly, the problem lies in the malfunction of the spark plugs. The situation can be corrected by replacing faulty spark plugs and high-voltage wires with new ones;
- problems with the module or coil. If the engine check triples, then the reason for this may be low resistance on the coil. Therefore, it is necessary to measure the resistance on the coil and check for the presence of a spark, then replace it if necessary;
- malfunctions of sensors or their circuits;
- malfunction in the engine control system. It happens that the check light does not indicate the need for diagnostics or repairs. Therefore, sometimes in order to fix a problem it is necessary to simply check the functionality of some components of the car.
How to remove an icon
On different car models, car diagnostics function differently. Some of them, when you rotate the key and press the pedal a certain number of times, the indicator lights up. After this, you should count the number of fires and look for an interpretation in the table. For other brands, a code appears on the screen when starting diagnostics using a combination of buttons.
For other brands, the contacts begin to bridge. An excellent solution is to purchase a special scanner that allows you to monitor the operation of the motor and understand what exactly has gone wrong.
If you are interested in the question of how to remove the check engine light, then this can be done in the most accessible way. Disconnect from the battery within a short period of time . Then the device will be reset and the lights should go out. But this is only done after the error has been correctly identified. There are many other reset methods, for example, using a scanner, installing special programs, or closing contacts.
What does "Check Engine" mean?
First, a little theory. “Check engine” is translated from English as “check the engine.” From this we can conclude that if a light with this inscription starts to light up, it means that there are some problems with the car’s engine. This is signaled by the ECU (electronic control unit), which determines the quality of the fuel and its consumption, reads the engine speed, controls the ignition, etc. Therefore, for those who do not have at least minimal knowledge in this area, it will be impossible to determine the cause.
Note: if the “Check engine” goes out when you start the engine, then there are no problems with the engine and vice versa. If this is the second case with your car, then you should know that the lamp may be on due to a small problem, or perhaps due to a significant breakdown, which may well lead to a major repair.
Why does “triple” occur on Kalina
It is easy to understand that the reasons for such a malfunction in Lada Kalina can be varied. To correctly and quickly determine the cause of the tripping, it is necessary to determine which cylinder is faulty. Experts advise starting the search as soon as the check light comes on. After all, it was not without reason that the model manufacturer installed an automatic warning system in the car.
You don’t have to spend a lot of time and effort to detect a faulty cylinder. It is necessary to disconnect the so-called power tips from the spark plugs one by one. By carrying out this procedure, you can determine by the sound of the engine which cylinder is not working. If the sound of the engine has changed, it means that you have discovered the cause of the “triple”.
System glitch
The first thing that comes to mind is that the engine program was simply wrong. This is possible and occurs quite often. When one of the sensors stops giving signals for a moment, the ECU immediately reports a malfunction. The problem is complicated by the fact that the controller tends to save errors and constantly remind you of them in the form of a burning check. But there was no malfunction as such - most likely, the sensor lost information due to poor contact or weather conditions. Simply disconnect the terminal from the battery and the error will be cleared.
Decoding codes after diagnostics with a scanner
As stated above, if the measured characteristics do not differ from the standard ones by more than 20%, then everything is in order with the car. What are the standard parameters?
Parameter Meaning UACC Shows battery voltage. To understand whether there is an error in this case, it is necessary to activate all devices that consume the most voltage. Allowable voltage is from 13.9 to 14.5V. If it is less, then it is necessary to check individual circuits of the network. THR Throttle position parameter. As a rule, if it is faulty, the driver will know about it without diagnostics, since the car will move jerkily and the engine power will constantly drop. Press the gas pedal without starting the engine, but turning on the ignition. The TPS readings should gradually increase to 90% (or slightly less). If everything is so, then the sensor is working; if not, it needs to be replaced. FREQ Parameter of crank pulley rotation speed. The rotation speed is up to 840 rpm. If this sensor fails, the operation of the motor will be impossible. AIR Mass air flow parameter. It should not exceed 12 kg/hour. Start the engine and press the gas pedal so that the number of revolutions increases to 5 thousand per minute. In this case, the parameter should increase to approximately 250 kg/hour. Naturally, if the device is working properly, then the indicator will be like this. UOZ Represents the ignition timing angle. It should change in the range from 6 to 15 degrees. INJ This bk parameter represents the duration of the injection pulse (the time required to open each injector for gasoline to enter the cylinder). Ideally, this parameter should be between 3 and 5 milliseconds when driving at neutral speed. If the readings obtained during diagnostics are much higher, then, most likely, the injectors are already clogged and need to be cleaned. Or it indicates low gasoline pressure as a result of a clogged gasoline filter or pump. Press down the gas pedal sharply. The injection time should increase to 20 ms. Ideally, accurate diagnosis of injectors is only possible using a test bench. FSM Idle speed sensor performance indicator. Ideally, this parameter should not exceed 50-60. If you press the gas pedal sharply, it can increase to 160-180. ALAM 1 Shows the voltage level recorded on the oxygen level monitor. When the car engine is warmed up, this indicator should increase from 0.007 to 0.7 V. If this indicator differs, then something is wrong with the circuit. LUMS_W This coefficient indicates the rotation of the crank pulley. Ideally, it should vary around 4 revolutions per second. If it is slightly larger, then this already indicates a misfire in the engine cylinders
This means that you should pay attention to checking the spark plugs (whether they are working, filled or not), as well as the condition of the high-voltage wires. QT Gasoline consumption coefficient. With the engine running and idling, it should not exceed 0.9 liters per hour.
New Lada: Location of controls and instruments Lada Granta (VAZ 11183, 21116)
Downstream oxygen sensor
In addition to the previous reason, one can also include the oxygen sensor located at the bottom of the car next to the catalyst. It is designed to capture unused oxygen to determine if the mixture is fed rich or lean. It is thanks to him that most of the work is done to adjust the composition of the fuel-air mixture.
The sensor operates under the most difficult conditions: high temperature, low-quality fuel, impurities, and its contact group comes into contact with dust, dirt and moisture. That is why it can give errors or fail completely, which leads to the “check” signal.
Broken fuel tank seal, catalytic converter failure
Why the oil pressure light on the VAZ 2114/2115 is on: reasons and solutions
Lada Granta granta Sirius Logbook oil in the box If the check persists on the dashboard, then the car owner will look for a fault in the engine. But the reason may be different. The check engine light may come on due to problems with the tightness of the fuel system. The fuel filler cap may not be securely closed. Why does this problem occur? The reasons may be the following.
- If the seal of the fuel system is broken, air begins to flow into it.
- Additional fuel consumption appears.
- Air in the fuel system causes engine problems.
- The check engine light comes on on the dashboard.
How to fix the problem? If the check engine light is on and there are no signs of loss of power, knocking, humming or squeaking, then you need to check how tightly the gas tank is sealed. Sometimes, in a hurry, the driver simply forgets to close the lid tightly, or cracks begin to appear on it. If you have fixed the problem, but the check continues to light, then this is not the reason.
What to do if the catalyst fails? A car catalyst is needed to neutralize exhaust gases. The oxide contained in exhaust contains many substances that are harmful to the environment. The catalyst reduces the damage that a running vehicle causes to the environment.
If the check light is on due to a faulty catalyst, you will notice that the engine power has dropped significantly. The car loses acceleration dynamics. What is the reason for catalyst failure? Regular technical inspection of the vehicle will ensure that such a malfunction does not occur.
One of the reasons for catalyst failure is a breakdown of the oxygen sensor. Old spark plugs can cause catalytic converter failure. You should not take this problem lightly. If the oxygen sensor or spark plugs malfunction, the process of neutralizing exhaust gases is disrupted.
As a result, carbon monoxide begins to accumulate in the catalyst, it overheats and may burst. You cannot drive a car with a faulty catalyst. This will lead to improper operation of the engine, which is why the check light will light up. The car will consume more fuel and the engine will not produce traction.
The cost of a new catalyst is quite high, but still cheaper than engine repair. There is one more problem. You are unlikely to be able to replace the catalyst on Kalina yourself, so you need to go to a service center. To avoid this, you should regularly change the oxygen sensors and spark plugs.
The mass air flow sensor monitors air consumption. If the engine malfunction light comes on, you need to check the sensor. It monitors the amount of air required to ignite gasoline. Information from the sensor enters the on-board computer.
If the mass air flow sensor fails, the car begins to consume more fuel. There is a greater emission of carbon monoxide, engine power and the smoothness of the vehicle are reduced. If there is weak dynamics during acceleration, then it makes sense to assume that the sensor is faulty. As a rule, in cold weather the car begins to have trouble starting.
Why does the mass air flow sensor fail? One of the reasons for the failure of this device is incorrect installation of the air filter during its scheduled replacement. Like many consumables, the air sensor needs to be replaced regularly
It is important to change the air filter in a timely manner.
A sensor malfunction has little effect on engine performance. You can drive for some time with a faulty sensor. But this will lead to increased fuel consumption. The cost of a new sensor for Kalina is not very high, and you can do the replacement yourself. If necessary, the sensor can be replaced in service, during a routine inspection.
UCH error
The UCH is the central electrical switching unit of the passenger compartment. Designed to connect all connectors and blocks located inside the car. Many installers, for example, of alarms or music, install additional options without disconnecting the power from the battery, which is why when they remove the chip, especially with the ignition on, the computer thinks that there is an open circuit in the system and displays the corresponding error.
The problem can be treated either by deleting the error or resetting it by disconnecting the negative terminal of the battery.
conclusions
The reasons why the “CHECK” function lights up on the Lada Grant are quite simple, since this sensor is responsible for the full operation of the engine. To identify the causes, it is worth conducting a diagnosis and determining why this happened, and only then eliminating it.
All modern cars are equipped with many different indicators and are simply “stuffed” with electronics, so it is not surprising when any malfunction indicator lights up, vehicle owners begin to look for possible reasons for this phenomenon. The owners of the well-known Lada Granta car in Russia are no exception.
You can reset the u0100 error on a Lada Granta with an automatic transmission using the built-in control system; for this you need to:
Error on Lada Granta panel
In this case, there is no need to flash the “brains” of the car. Firmware for the Lada Granta automatic will most likely not help in solving this problem, so you should look for another reason.
In addition to this error, owners of domestic cars may encounter code p0504. Error p0504 on the Granta automatic is a consequence of a faulty brake pedal sensor. As a rule, a spring fails, which could break, as a result of which the contact pad of the sensor does not return to its original position.
This breakdown can be eliminated in the following way - adjust the position of the sensor itself using a special nut that secures it.
Mass air flow sensor error
The mass air flow sensor is also one of the most common faults in a fuel-injected car. More precisely, not the sensor itself, but the system under its control. The MAF is designed to estimate the amount of air passing to the air filter.
When the filter becomes clogged, the sensor begins to produce too little air, which leads to an error, since the monitored parameter is below the set value. Replacing the air filter will help eliminate the cause of the check.
Let's sum it up
The service life of the LADA Kalina power unit can be extended if you carefully treat the car and operate it in accordance with the established requirements. As for spark plugs, you should use only those recommended by the official car manufacturer.
Yesterday I changed the generator on the car and the wires of cylinders 1 and 2 were bothering me. I took them off, after replacing the genes I forgot to put the wires on the spark plugs and tried to start the car. I realized this 8-10 seconds later, after I put the wires on and started the car, a small detonation of the engine appeared.
The revolutions do not fluctuate, 750 as expected, the check does not light up, there are no errors. When accelerating the car, the traction was lost. It rips from a standstill, but when the revs increase to 3000, the car drives poorly, it drives, but not as fun as before. What could it be?
Salam to everyone! Troubles the engine. At idle the revs drop and it almost stalls. The engine rattles. turning the ignition off/on will work normally and starts again, troit. Changed: Spark plugs, high-voltage wires, ignition coil, mass air flow sensor, 2nd lambda probe.
Lack of electrical energy
This can be reported not only by the battery charge lamp, but also by the Check Engine. When the generator does not produce enough energy to provide the car with all the necessary devices, the devices themselves begin to work intermittently. Various electrical connectors are no exception when power is lost at their terminals.
A temporary lack of voltage leads to a huge number of errors being recorded in the ECU. They cannot be reset by simply disconnecting the terminal. First you need to fix the cause of the poor battery charge, and then connect the car to a diagnostic computer.
The check light comes on and the traction disappears
Often a p error occurs, which indicates that misfires are occurring. There are several reasons for these omissions, and to determine them it is necessary to carry out a step-by-step diagnosis, taking into account certain individual symptoms.
If everything is in order with the spark plugs and wires, you should pay attention to the ignition module or ignition coils, which may be shorting. In this case, it is better to entrust the check to experienced specialists, since unprofessional actions lead to the fact that you can burn the switch or damage other important elements.
VAZ Troit, the check light is on and flashing, it doesn’t work, the solution to the problem.
If the check light comes on and the car does not pull, in addition there is an incomprehensible vibration in the steering wheel, then first of all you need to check the serviceability of the spark plugs. The sparking of the spark plugs is also controlled electronically.
Dips in the engine, does not pull, troits, speed fluctuates. Found the reason! In general, the symptoms are as follows: when you start the car, the check light comes on, the check light comes on and the car doesn’t pull, when you press the gas it starts to speed up, then it more or less levels off and starts to pick up speed, but as soon as you press the brake it barely accelerates again!
I was driving to the dacha, the check light came on, the power was lost, I had difficulty accelerating down the hill to 80 in order to drive up the hill. In first gear the check light still came on. The engine does not pull. [Archive.
The engine does not start. The engine stalls. Troubles the engine. The car doesn't pull. Finding and Eliminating Causes Modern cars are driven by efficient computerized systems that constantly monitor the vehicle's performance. What to do if the check engine light comes on periodically.
Message by krot » Fri Message by krot » Thu Message by verserval » Fri Message by krot » Sat Message by Alexeyenko » Fri Message by Li Pu Hin » Sun The diesel power system lights up and the car does not pull.
Time: 0. Club of fans of minibuses and minivans Skip to content. Posts: 16 1 2 Next. The check light comes on and the traction disappears Message by Vyacheslav Shilonosov » Sat Good day.
A few days ago the check light started to light up and the traction disappeared at the same time, I stopped, turned on. Ignition and everything is fine. Then after five minutes or every other day he can study again.
I went for diagnostics and they told me to change the gas pedals. Car Town Noah 3rd. To come back to the beginning.
Re: The check light comes on and the traction disappears Message andr » What is the error? Hyundai Coupe and 22 other models.
Volkswagen Polo and other models. B Exclusive. MINI One and 5 more models.
Ignition system malfunction
Misfires. Depending on the car model, this parameter can be controlled in two ways: the first is the most common, a knock sensor, which detects such phenomena and transmits them to the ECU. The second is a less accurate crankshaft position sensor.
The second method determines misfires based on crankshaft distortions that occur when the engine operates unevenly on three cylinders. Sometimes such distortions can occur for mechanical reasons, and the ECU only tells you where to look for the problem.
Another problem is worn or dirty spark plugs that are unable to ignite the mixture. Because of this, gasoline enters the exhaust system, where it is successfully “picked up” by the oxygen sensor, appearing on the instrument panel in the form of a check.
In all cases, increased fuel consumption is observed, and the cause can only be eliminated by cleaning or replacing the spark plugs. In some cases, the ignition module itself will require replacement.
Something else about the crankshaft position sensor. Without this device, the controller will not be able to determine the top dead center of the cylinder. If it is faulty, the check will light up and the engine will not start, since it “does not know” at what point to inject fuel. This is another reason why the check light on the Lada Grant is on.
Floating engine speed
Engine speed problems can easily be identified by looking at the tachometer. Stable operation of the power unit at idle should not exceed 850 rpm. A small spread of 750 to 850 rpm is allowed. If the tachometer needle jumps chaotically—it goes down, then it goes up—there is a malfunction. This is a fairly common problem, and it is easy to identify why the speed of the Lada Granta is floating. It is enough to listen to the engine running - with unstable idle speed, the noise either decreases or increases.
The floating speed is also indicated by a characteristic vibration that will either subside or increase, transmitted through the engine compartment.
Why are the revs jumping?
The cause of the problem is the specifics of regulating the operation of the power unit at idle by the control unit. It continuously reads data about the status of various engine systems from sensors. If the idle speed becomes unstable, the sensors are given a command to correct the functioning of the system.
The engine does not develop full power.
— The engine is new, has not yet been run-in. The new Granta engine needs an initial run-in of up to 6-7 thousand km. During this period, the engine does not develop full rated power. The crankshaft revolutions during the break-in period should not be raised above 3000. — Malfunction of the electronic gas pedal. For a description of the solution to the problem, see above in the paragraph “The engine does not start.” — Insufficient pressure in the ramp. For a description of the solution to the problem, see above in the paragraph “The engine does not start.” — Valve clearances are broken. If you have an 8-valve engine, then periodically (every 15-20 thousand km) it is necessary to adjust the timing valves. — Malfunction of the ignition system. For solutions to problems, see above, in the paragraph “Engine does not start.” — Low compression in the cylinders.
Transmission
The manual transmission has been modernized more than once. It now has a cable drive, thanks to which the gears are engaged with less effort, and the accuracy of the selection mechanism has increased. This box has the factory index VAZ-2181. But the sound when its gears operate is still too loud. The problem with the second gear synchronizer has not been completely resolved. Poor engagement and rapid wear of the synchronizer, despite numerous upgrades, still occur. As well as oil leaks through the seals. The reason is the low quality of the seals themselves and the insufficient accuracy of the positioning of the seal relative to the shaft. All this fully applies to the VAZ-2182 robotic gearbox, because it was created on the basis of a mechanical one.
In the case of gearbox 2181, the clutch mechanism rarely lasts more than 100,000 km, especially if the car is used in a big city and often sits idle in traffic jams. In robotic gearboxes, the clutch lives even less.
The only truly reliable transmission in the line is a 4-speed automatic from the Japanese company Jatco.
Insufficient oil pressure.
1. Using oil that is not suitable for the engine. Use only oils and specifications recommended by the manufacturer. 2. Oil dilution/foaming as a result of fuel/antifreeze entering the engine crankcase. It is necessary to identify leaks and eliminate them. After this, be sure to replace the oil with a new one, with flushing. 3. Worn oil pump. The oil pump resource is quite long. Its failure is rare. If damaged, replace with a new one. 4. The oil filter is clogged. Replace with a new one, along with an oil change. 5. Damage to the crankcase. Check for external damage to the engine crankcase. It may be damaged by the road surface, which will reduce the gap between the oil receiver and the bottom of the oil sump. 6. Clogged oil channels and lines. May be caused by contaminated oil over a long period of time. The system needs to be flushed. 7. Cracks, uninstalled oil channel plugs. Carry out a visual inspection and install missing plugs.
Car history
Today, the domestic model Lada Granta is a sales leader. Every year it becomes more and more popular, in demand and interesting to a wide audience, because the car was created using completely new technology, using original design solutions. Engineers have finally begun to move away from the outdated, established stereotypes of automotive design. The result of this search was Granta.
So, at the beginning of the 2000s, the AvtoVAZ plant reminded itself of itself with a good Lada Kalina project. Of course, this car still needed serious improvements and adjustments. But nevertheless, already from this car, new trends in the work of the enterprise emerged, which the press was quick to report and both critics and ordinary car enthusiasts noted. Now the plant management decided to continue the work line that had been started; the next project was to be even more daring, non-standard, combining such qualities as aesthetics, dynamics, comfort and low price.
Initially, the name of the new model was given a lot of words, Low Cost, which translated from English means “low price”. But later it was decided to replace this name with something more sonorous and bright. So, having selected one, Grant, from hundreds of thousands of items, AvtoVAZ began to establish serial production. In 2009, our compatriots saw the first copies of the Lada Grant.
Of course, she was strikingly different from Kalina, and even more so from previous projects. There was no longer that laconic modesty inherent in domestic developments; this car attracted attention with its alluring, elegant forms, an abundance of extraordinary design solutions, and an excellent technical component. It was no longer a shame to show such a car to a global audience, which is what they did.
Granta Sport has repeatedly performed at major international competitions, taking prestigious places. This is how AvtoVAZ’s new idea debuted. But, in addition to the undeniable advantages, there are also flaws in Grant. Here and there there are annoying breakdowns, reminding us that we still have a domestic car in front of us, which is not fully thought out and is still far from ideal.
