Niva 21214 check light on, engine running fine

Battery lost charging reasons

What are the reasons for the charging failure, how to fix the problem on the road or in the garage - this is discussed in this manual. The electrical circuit of the LADA Niva 4×4 is built according to a classic layout and has undergone virtually no changes since the start of production. Why, knowing its weak points and moving from the obvious to the complex. You will quickly find the root cause. Generator connection principle, drawing:

Basic information about the state of the charger can be obtained from the behavior of the instrument cluster - flashing of the indicator, emergency operation of electrical equipment (headlights, interior lighting, heater) and the engine.

4. Replace the mass air flow sensor

The oxygen sensor in your car is part of the exhaust system that monitors how much oxygen is not burned in the engine's combustion chamber. This sensor helps control the vehicle's fuel consumption. A malfunctioning oxygen sensor (lambda probe) means that the car computer is receiving incorrect data, which can significantly increase fuel consumption and reduce engine power.

For what reason does the oxygen sensor in a car become unusable: Over time, the sensor becomes covered with a layer of used engine oil (oil soot), which reduces the accuracy of reading sensor readings for regulating the gasoline mixture and distributing optimal fuel consumption. A malfunction of the oxygen sensor in a car leads not only to increased fuel consumption, but also to an increased content of harmful CO2 substances in the exhaust.

What needs to be done: If you do not change a faulty car oxygen sensor, this can lead to failure of your car's catalyst (it may burst), which will result in expensive repairs. The cost of new catalysts is very high due to the precious alloys they contain.

On some cars, there are several catalysts, the cost of which can reach up to 90,000 rubles. So don't delay replacing the sensor. Although replacing the sensor and its cost is not very small, it is not commensurate with the cost of the exhaust gas catalyst system. You can also save on replacement costs by doing it yourself.

Many car manuals have detailed instructions on how to replace the oxygen sensor yourself. If you know where the oxygen sensor is located, then it will not be difficult for you to disconnect the faulty lambda probe and replace it with a new one. Remember that you cannot delay replacing this important element!

The mass air flow sensor regulates how much air needs to be added to the gasoline mixture for optimal ignition of the fuel. The sensor constantly reports data to the car's computer about the amount of oxygen supplied. A faulty mass air flow sensor increases fuel consumption, increases CO2 levels in the exhaust gas, and reduces engine power and smoothness. Also, if the sensor is faulty, poor acceleration dynamics are observed. In cold weather, a car with a faulty sensor has difficulty starting.

What are the reasons for the failure of the mass air flow sensor: Most sensor failures occur due to improper installation of the air filter during its scheduled replacement. Also, if you do not regularly change the air filter, as required by the vehicle maintenance regulations recommended by the manufacturer, the mass air flow sensor may fail.

What you need to do: Theoretically, you can drive for a long time with a broken mass air flow sensor (several weeks or months). But you will notice that the longer you drive, the more your fuel consumption increases. Replacing the sensor in a car service is not that expensive, since the work itself does not take much time and is quite simple.

The main costs are related to the cost of the sensor, which for some car models can be 11,000-14,000 rubles if it is an original sensor or up to 6,000 rubles if it is an analogue substitute. Replacing the sensor yourself is very simple. But due to the low cost of replacing the sensor, you can entrust this work to a mechanic at a car service center. Remember that you need to regularly change the air filter, observing the vehicle maintenance regulations!

Replacing spark plugs and high-voltage wires

Spark plugs in a car are the main components for igniting the fuel mixture. If the spark plugs are faulty, the spark will not be supplied correctly to ignite the gasoline mixture. Faulty spark plugs often result in a lack of spark or an incorrect spark interval, which results in the engine not running properly. If the spark plugs do not work properly during acceleration, especially from a standstill, you may feel slight jolts.

What are the reasons for spark plug failure: Most spark plugs in cars produced before 1996 need to be changed every 25,000-30,000 kilometers. In newer cars, spark plugs last more than 150,000 km. However, these scheduled spark plug replacement intervals may be reduced by various factors related to fuel quality and driving style.

What needs to be done: If your spark plugs have not been changed for a long time, or you feel failures in the engine operation associated with ignition, then you must immediately replace them with new ones without delay. Do not try to save money by untimely replacement of spark plugs, since the cost of spark plugs is not very expensive, as well as the work of replacing them.

By replacing old spark plugs, you will improve engine performance and reduce your vehicle's fuel consumption. Changing spark plugs yourself is quite easy. Basically, they are easily accessible under the hood of the car. You need a regular spark plug wrench to remove the spark plugs from the engine.

It is also advisable to monitor the condition of high-voltage wires, since over time they can become unusable and allow electricity to pass through, which is transferred to the spark plugs, which will reduce the strength of the spark. Remember that regularly replacing spark plugs, in accordance with your car’s maintenance schedule, protects your exhaust catalyst from breakdowns and also improves engine performance!

This article was originally published in 2013 and updated with new information on 02/17/2020.

The whole village was looking for the reason why the engine in the field was not working. Everything turned out to be as simple as shelling pears.

I have been diagnosing engines for 10 years already, in principle this is a long time and you might think that I have a lot of experience and I can easily identify any malfunction, but when I start to think like that, then fate throws me another surprise, after which I understand that They say correctly, live forever and learn. One of these cases happened recently.

My grandfather calls me from the village and says that the engine in the field is failing, we have been fighting for two days now and cannot find the reason. I myself live in the city, and the village is 50 kilometers from it. I think I probably won’t go far. He began to refuse, but the grandfather asked, saying that the whole village could not find the reason, what to do and who to contact no longer knew. Well, I think I’ll go, since the whole village can’t figure it out, it means it’s an interesting case.

I asked him to tell me in more detail how it all started. He says two days ago he decided to disassemble and blow out the carburetor. After this was done, the engine began to stall and stall, and did not pick up speed. Gas equipment is installed in the field. The engine performs equally poorly on both gas and gasoline.

I arrive in the village and see that 10 people are standing over the car and arguing. The village is not big, apparently it is half the population. 10 meters from the car I smelled gas. I come up and see what’s lying there, a lot of different tools, I think, apparently they’ve already checked everything possible, it won’t be easy to find the reason. An old compression meter caught my eye.

My grandfather said that he made it himself back in 1980. I took the pressure gauge from the boiler. They can even measure the vacuum; there are marks below zero.

The spark plugs were unscrewed and they checked the compression. The spark plug insulators are black, apparently the mixture is greatly over-enriched. Perhaps the problem is in the carburetor, the grandfather did not assemble it correctly, but the engine does not work well on gas, which means the reason is not in the fuel supply. The thought came to mind: maybe the engine runs on two types of fuel simultaneously, that is, both gas and gasoline. I ask my grandfather, he says we completely ruled out this option, closed the tap located on the fuel supply valve. This valve is installed between the fuel pump and the carburetor float chamber. When the engine is running on gas, the valve shuts off the flow of gasoline to the carburetor.

I checked that the tap is completely closed. I think there's more to check. In principle, there is nothing more, everything has already been checked several times. I decided to try to remove the hose that supplies fuel to the carburetor and see if gasoline would flow from it, maybe the valve was faulty. I took it off and started pumping it manually with the fuel pump. Gasoline poured out of the hose.

This means that the engine really runs on two types of fuel, and this is the reason why it stalls. I decided to open the tap completely and close it again, maybe something got under the valve, and it will close if it is tightened. But when I opened it completely, the gasoline stopped flowing. I tried to close it again and gasoline started leaking. This means that when we tighten it, it opens, and when we unscrew it, it closes, that is, the tap works in reverse. Why this was done is not clear.

In general, when I closed this tap, that is, unscrewed it completely, the gasoline stopped flowing into the carburetor and the engine started working normally on gas. The reason didn’t seem to be complicated, but I had to tinker.

That's all, thank you for reading the article, if it was useful to you, like it and subscribe to the channel.

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Drivers;1136208838:

What could be the problem? Owners of this model, tell me, maybe Niv has this disease or what?

Look for gas in the tank and try to refuel at another gas station first. Don’t rush into repairs.

Drivers;1136208838:

I can’t understand what could happen to a NEW car. What could be the problem?

Anything: a fuse has blown, bad gasoline has been poured in, a wiring is loose somewhere, a sensor has died, etc. and so on. and so on. Why guess? The car is new, under warranty - I went to the nearest dealer and let them have a headache about it. And here on the forum how are you supposed to guess?

I love heavier music and Korn and Slayer and Slipknot

But Ivan Dorn has no equal - it’s really hard to listen to

What is a “check engine”: what problems does a burning “check” indicate?

The warning light comes on for the following reason: the engine ECU detects some error or failure and writes the fault into its memory in the form of a specific code. In parallel with this, the control unit initiates the lightning of the check. Let us add that on some cars that have a developed self-diagnosis system, such an error can be immediately deciphered and the data is displayed on the on-board computer screen.

It is worth noting separately that if the check engine light is on when you turn on the ignition, then this is an absolutely normal phenomenon and is not a malfunction. The icon should normally go out after the engine starts, that is, after the internal combustion engine begins to operate independently. A cause for concern is the situation when the engine is running and a lighted check mark is present on the panel after starting.

As already mentioned, the ECU records various errors, after which the check light comes on. This means that the malfunction can be either a serious breakdown or a minor problem. In any case, further operation of the vehicle is not recommended, since the car requires immediate diagnostics. At the same time, experienced drivers can independently determine the cause of the check light without going to a service station or using diagnostic equipment. Let's look at the main symptoms, signs and causes of common faults that cause the warning light to come on.

Hi all. I have a VAZ 21214 injector. The engine idles unevenly and at low speeds, the check light comes on. Diagnostics showed a malfunction of the upper damper position sensor. I immediately changed it and the fan switch sensor, but the problem still remained. Tell me what to do next.

What does the Check Engine Light mean?

Sometimes it can be a very minor problem - for example, a loose gas cap or a faulty catalyst. However, you should not ignore the indicator signals under any circumstances, as this can result in serious problems.

The Check indicator may light up for various reasons.

Sometimes the cause of the indicator light may be poor fuel quality. So don’t be surprised if, after refueling at an unfamiliar gas station, you see the Check Engine light flashing.

Typically the indicator is located on the car's dashboard under the engine speed indicator. It is indicated by a schematic engine or a rectangle with the inscription Check engine or simply Check. In some cases, instead of an inscription, a lightning symbol is depicted.

Is it possible to continue driving while the light is on?

The brake pads are worn out, it's time for the next maintenance, the speed is switched incorrectly, low-quality fuel is used, the on-board voltage has dropped - all this can cause the Check indicator to light up. First of all, you should check the motor. If the reason for the signal to turn on is due to engine malfunctions, it is dangerous to continue driving.

The problem is aggravated by the fact that it is impossible to independently determine the malfunction of a modern internal combustion engine by smell or color. You should contact professionals who will use a scanner to identify the malfunction, if, of course, there is one.

A burning Check light may indicate various breakdowns - it is better not to ignore it

Car diagnostics

Diagnostics of the engine and other systems and units in Chevrolet Niva, Cobalt, Lacetti, Lanos, Captiva, Cruze, Aveo 2004, 2005, 2010, 2012 and other model years allows you to timely identify the fault. Thanks to this, the car owner can prevent more serious damage. The errors themselves when diagnosing with a laptop or on a VDO display or other factory dashboard will be different. In the first case, the car owner receives the most accurate information about breakdowns, which allows them to correctly decipher and remove faults. Error combinations will be four-digit.

During self-diagnosis on the on-board computer State on the instrument panel of a VAZ 2123 or Chevrolet Tahoe, Orlando, Blazer, Lanos, Niva, Lacetti, Cruz, Captiva, Epica, Aveo in the T250 and T300 body, faults are displayed in two-digit form. Instead of combinations, messages may appear on the display to warn motorists.

Pressing the odometer button on the dashboard

How to do it yourself?

There are two ways to check for errors in a Chevrolet: self-diagnosis or using additional equipment or a computer. In order for the on-board computer to test for faults, you need to hold down the button on the odometer to reset the daily mileage and turn the key in the ignition. This will cause the needles on the speedometer and gauges to start moving along the scales. And when you press the button again, the ECU will display a message on the display about the version of the firmware being used. After the next press, combinations of problems, if any, will appear on the screen.

What codes may appear on a Chevrolet Niva after self-diagnosis:

1 - the microprocessor is not working correctly;
2 — a break was detected in the electrical circuit of the fuel level controller in the tank;
4 - increased voltage level in the vehicle’s on-board network, amounting to more than 16 volts, diagnostics of the battery and generator unit is required;
8 - the voltage in the Chevrolet electrical network is low, the same checking steps are performed;
12 - the control indicator is not functioning correctly;
13 - the control unit does not receive a signal from the lambda probe;
14 - the ECU received a signal about overheating of the coolant, this can lead to boiling of the engine;
15 - the operating temperature of the antifreeze in the cooling system is too low;
19 - the ECU received a signal indicating that the crankshaft is not operating correctly; we recommend testing the controller;
21-22 - the throttle valve is in the wrong position;
23-25 - the intake air temperature does not correspond to the norm;
24 - the dashboard does not receive an impulse about the speed of the vehicle;
27-28 - the control unit reports violations in the level of exhaust gases;
33-34 - The ECU receives incorrect data on air flow;
35 - the power unit does not operate correctly at idle;
41 - an incorrect signal is received from the phase controller or camshaft sensor;
42 - The computer reports problems with the ignition;
43 - incorrect impulse from the knock sensor;
44-45 - incorrect composition of the combustible mixture;
49 - The ECU detects a loss of vacuum;
51 - ROM malfunction;
52 - The ECU has detected a RAM error;
53 - the control module does not receive an impulse from the exhaust gas regulator;
54 - the octane corrector controller does not respond;
55 - the load on the power unit is too high;
61 - the oxygen controller gives incorrect readings.

Battery disconnect method

Disconnecting the battery is an old way to reset the check engine light. Here are three steps to clear the check using this method: Step 1: Disconnect the cables from the battery. At this point, you should use a wrench to unscrew the positive and negative cables.

Also interesting: Silent blocks and suspension bushings for Chevrolet Niva | Motorring online store

Step 2: Discharge the remaining electricity. The next thing you should do is press and hold the car horn for about 30 seconds. This action will help drain the car battery.

Step 3: Wait and reconnect the battery. After disconnecting the battery cables and draining the remaining electricity, all you have to do is wait about 15 minutes and then plug the battery back in. Error codes will be cleared. (Note: This method may not work on some vehicles.) If after this procedure the “check” lights up again, this may mean that the problem is still much more serious.

2. 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!

Resetting or zeroing the Check indicator

In most cases, as the table shows, Check lights up when a sensor fails or the operating conditions of the vehicle change. However, even after diagnosing and eliminating the malfunction, the light sometimes continues to light.

The fact is that the “trace” of the error remains in the computer’s memory. In this case, you should “reset” or “zero” the indicator readings. You can easily do this yourself by performing a number of simple operations:

Resetting or resetting the Check Engine Light

The sensor is reset and the Check light is no longer on. If this does not happen, contact the service center.

When the Check Engine light comes on on the dashboard, you almost always need to stop the car immediately. Using the recommendations given in this article in practice will help you avoid complex, expensive engine repairs. Good luck on the roads!

Owners of cars with an electronic engine control system (ECM) quite often encounter the unexpected illumination of the “check engine” warning light on the dashboard. Let us immediately note that if the engine check light is on, then this indicates certain malfunctions that are associated with the operation of the power unit and its systems.

There can be quite a few situations when the engine fault check light comes on. Owners often complain that after washing the engine the check light comes on, the check light comes on when the engine is running, or the internal combustion engine does not start, the warning light periodically or constantly lights up on a cold or hot engine, etc. Next, we will look at the main reasons why the check engine light may come on, and also talk about ways to diagnose and fix a number of common faults with your own hands.

Read in this article

Why the check engine light came on: reasons and what to do in this case

Let's start with a global problem for the CIS countries. If the “check” light comes on while driving a car after a recent refueling at a gas station, there is a drop in power, the engine begins to work intermittently for no apparent reason, then the culprit may be the quality of the fuel or its inadequacy for this type of engine.

To solve the problem, it is often enough to dilute the fuel poured into the tank with a portion of high-quality gasoline or diesel fuel, after which the burning check will go out on its own after a few km. mileage Let us add that in some cases, low-quality fuel needs to be drained and the power system cleaned. Also, the check may not go out even after the cause has been eliminated. In this case, the recorded error in the ECU must be reset programmatically, that is, using special equipment.

We will also touch on the situation when the engine started up and the check light came on. This problem can often be caused by both problems in the ignition system (plugs, wires, coil, etc.) and malfunctions of the power system, when fuel is not injected into one of the cylinders.

If we summarize the main reasons why the check light is on on a cold engine, the engine starts or does not start when the check light is on, then the list should include:

Low quality fuel that needs to be drained or diluted with normal fuel.
Broken or heavily dirty spark plugs, incorrect gap between the side and center electrodes. In this case, the spark plugs need to be cleaned and checked, or you can immediately replace the set of spark plugs.
High voltage wires. Insulation breakdown and contact defects are possible. The spark plug wires need to be checked and/or replaced.
Problems with the ignition coil. It is necessary to check the coil for a spark, and also measure the resistance at the terminals.

Irregularities in the fuel supply process associated with faulty fuel injectors. In such a situation, the injector needs to be checked, cleaned or the nozzles replaced.
Insufficient fuel pressure due to fuel pump failure, contamination of the fuel pump mesh, or reduced fuel filter capacity. In the case of a diesel engine, it is necessary to diagnose the fuel injection pump.
Catalyst and lambda probe. Failure of these elements leads to the unexpected lightning of the check on the dashboard. On some cars, you can completely remove these elements (cut out the catalyst and disconnect the oxygen sensor), on others you will only need to replace the parts.
Failure of individual ECM sensors (camshaft position sensor, speed sensor, mass air flow sensor, etc.).

The check light on the field 21214 came on, what should I do?

We pay for photo reports on car repairs. Earnings from 10,000 rubles/month.

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The translation of the expression “check engine” in Russian literally sounds like “check the engine.” The “check” icon is on the dashboard of most modern cars, but its meaning remains unclear to many. Therefore, if this icon - a yellow or orange engine icon - appears and does not disappear (or simply blinks), a logical question arises in an inexperienced driver: “what does this mean?” Next, we’ll try to find out the reasons why the check engine light came on on the dashboard of your car, as well as how to get rid of it.

Initially, this light indicated problems with the carburetor, but now that cars are equipped with full-fledged on-board computers, the message may indicate various malfunctions. For example, a “check engine” error may indicate problems with the quality of the air-fuel mixture or ignition faults, as well as many other things. Messages can be caused by both minor and critical failures.

Thus, when the “check engine” light is on, it is only clear that the ECU has detected a malfunction in one of the car’s systems. Only diagnostics can give a complete picture. Next, we will look at the main reasons why the check engine light is on and what needs to be done about it.

TOP 10 reasons why the check engine light came on

The fuel tank cap is open . Check if it is closed tightly.
Bad gasoline . The system can respond to fuel quality. The solution would be to drain the gasoline and fill it with better quality.
Oil level . First of all, check its level with a dipstick. Also look for cracks in the block and oil leaks.
Problems with the fuel pump or strainer in the tank. Check that the pump runs smoothly and does not make any unusual sounds.
Dirty injectors . Eliminated by cleaning the injectors.
Faulty high voltage wires or coils.
Problem with spark plugs . The icon also lights up if there are problems with the spark plugs. It is worth checking the performance of the spark plugs and, if necessary, replacing them.
No spark in one of the cylinders.
The lambda probe is faulty . The problem can only be resolved by replacing this unit.
Catalyst failure . Also solved by replacing the catalyst.

Only the main reasons and ways to solve them are listed here. In fact, there are many more of them.

Diagnostics of the on-board computer, which controls all vehicle systems, can give a more complete picture of the current situation.

Check engine is not hidden on the dashboard of the Madza CX-5

Check engine on the Peugeot Partner panel is hiding in the left corner

How to remove check engine

Let's take a closer look at the steps that need to be taken first of all in order to get rid of the Check Engine indicator that lights up. The priority action algorithm will be as follows:

Check if the gas tank cap is closed . The situation is especially relevant if you have just left the gas station, and soon after that the check engine icon comes on. This means that either the tightness of the fuel system has been broken due to the tank cap not being screwed tightly enough, or the quality of the fuel leaves much to be desired.
Check the condition of the spark plugs . To do this, unscrew them and visually assess their condition. Very often, it is the spark plugs that cause the Check Engine light to come on. In particular, the reason may be that they begin to pass current due to carbon deposits on the electrodes. This coating is formed as a result of the high content of metals or other conductive substances in the fuel. An error may also occur if the gap between the electrodes on the spark plug exceeds a distance of 1.3 mm. We will consider the diagnosis of candles in more detail and how to perform it based on their color separately. You will also find information about replacing them useful.
Oil level. If the check engine light only lights up when the engine warms up, stop and listen, you may hear extraneous sounds from the engine. Check the engine oil level with a screw and add it if necessary. Also check for oil leaks.
If your car is equipped with sensors for the purity of process fluids (motor oil, fuel, etc.), then the indicator may light up if the corresponding indicators exceed the permissible limit . The solution is to replace the appropriate filters or completely liquids if they do not meet the standards.
Resetting the negative terminal from the battery ( 15.20 seconds ). After this, the Check Engine light should go out and the clock on the computer should reset to zero. This method may be relevant in two cases. The first is a banal “glitch” of the ECU. The second is if a large number of small errors have accumulated in the memory of the electronic unit and have not been reset. (usually they are caused by the use of low-quality gasoline, the presence of harmful impurities in the fuel-air mixture, moisture on electrical contacts, etc.).

If, after performing the above steps, the Check Engine indicator does not go out, or goes out, but soon lights up again, this means that the error lies deeper, and in order to eliminate it, additional detailed diagnostics must be carried out using more serious means.

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New Niva.. The check light came on at 60 km.

Post by flatraaa » 04 Feb 2013, 22:50

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 04 Feb 2013, 23:01

Re: New Niva.. The check light came on at 60 km

Post by flatraaa » 04 Feb 2013, 23:40

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 04 Feb 2013, 23:49

Re: New Niva.. The check light came on at 60 km

Post by flatraaa » 05 Feb 2013, 00:00

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 05 Feb 2013, 00:09

Re: New Niva.. The check light came on at 60 km

Post by ParaLanik » 05 Feb 2013, 00:22

Re: New Niva.. The check light came on at 60 km

Post by Sunny » 05 Feb 2013, 07:23

Re: New Niva.. The check light came on at 60 km

Post by Sash » 05 Feb 2013, 11:07

Re: New Niva.. The check light came on at 60 km

Post by Sunny » 05 Feb 2013, 12:13

Re: New Niva.. The check light came on at 60 km

Post by Sash » 05 Feb 2013, 15:43

Re: New Niva.. The check light came on at 60 km

Post by flatraaa » 05 Feb 2013, 19:49

Re: New Niva.. The check light came on at 60 km

Post by flatraaa » 05 Feb 2013, 19:54

Re: New Niva.. The check light came on at 60 km

Post by Valkin » 05 Feb 2013, 20:54

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 05 Feb 2013, 21:00

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 05 Feb 2013, 21:07

Re: New Niva.. The check light came on at 60 km

Post by Valkin » 05 Feb 2013, 21:15

Re: New Niva.. The check light came on at 60 km

Post by flatraaa » 05 Feb 2013, 21:49

Re: New Niva.. The check light came on at 60 km

Post by boczman » 05 Feb 2013, 22:18

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 05 Feb 2013, 22:57

✅ The check on the field 21214 caught fire, what to do - auto-parts.su/

The popular Russian-made model is very widespread in the CIS countries due to its optimal cost and increased cross-country ability, which is critically important in the conditions of domestic operation.
Motorists buy cars for off-road travel and small towns, where the quality of roads leaves much to be desired. The disadvantages of the car include weak wiring - when the load increases to the design limit, on-board electronic systems often fail, which causes software failures.

Chevy Niva error codes appear on the dashboard display or are detected using special equipment, but the common thing is that they all indicate a malfunction of a specific component.

Reasons for tripling

ATTENTION! A completely simple way to reduce fuel consumption has been found! Don't believe me? An auto mechanic with 15 years of experience also didn’t believe it until he tried it. And now he saves 35,000 rubles a year on gasoline! Read more"

Strong engine vibrations are the first symptom of tripping. At the same time, misfires, exhaust problems and other symptoms may occur. Troubleshooting can be permanent or appear occasionally; it can appear during heavy engine loads or during different temperature conditions.

Re: New Niva.. The check light came on at 60 km

Post by Warlock » 04 Feb 2013, 23:01

Allow the check engine light to go off on its own.

Wait until the “check” goes out on its own. The simplest method because you don't have to do anything. The computer system in most vehicles will automatically recheck for problems that may activate the error light. If it is a minor problem, it will automatically correct itself and the check will go off. However, if the check light is still on after three days, you need to apply the methods mentioned above to reset it.

If this continues to happen despite the following reset procedures, you should take your vehicle to your nearest auto repair shop and have it diagnosed by a professional mechanic. Professional diagnostics use more sophisticated tools and can identify precise problems.

REMEMBER: You can always contact our car service center, where your car will be happy to receive professional technical assistance. You can also make an appointment with us for a scheduled technical inspection! Please familiarize yourself with our car repair and diagnostic services.

Diagnostics of Niva Chevrolet

The Chevrolet Niva diagnostic connector helps you obtain information about how most units work, into which special equipment is connected via Bluetooth or a cable. Therefore, if you want to conduct independent diagnostics, it is important to know where it is.

The connector in the Niva is located under the steering wheel on the right side, and the pinout itself is under the dashboard on the driver’s side. To check the on-board computer, you need to use special equipment that transmits all the necessary information to the laptop. Data transfer is carried out using a COM port into which a K-LINE type connector is installed.

When connecting, errors may appear on the laptop screen. At this moment, there is no need to worry, since the appearance of such messages may be due to a lack of communication with the device itself. You should also check whether the standard anti-theft system is installed; if so, check the adapter itself. If there is a standard location, then it is connected to the diagnostic line between the ECU and the immobilizer. And if it is missing, a plug is installed in its place. To restore communication between the contacts, a jumper is installed, as shown in the picture below:

Depending on the year of manufacture of the model, the connectors may differ from each other.

Ignition

The ignition module is a unit that comes into question after all the checks have been carried out. It is the bobbin that can become the culprit for the power unit tripping at idle or in other modes. To check the coil you need to do this:

Unscrew the spark plug, then apply it to the ground (any part of the body).

If the spark is good, its color is of high quality, and a characteristic crackling sound is heard, then the serviceability of the reel is not questioned. On the contrary, if there is no spark, or it is of poor quality, the module must be replaced, and thus it will be possible to “cure” the tripping.

It's not very often that a switch goes bad, but it does happen. It must be checked and, if anything, replaced.

Car exhaust catalyst

An automobile catalyst helps a car make engine exhaust gases more environmentally friendly. It converts carbon monoxide and other harmful substances into harmless compounds. If your exhaust catalyst has become unusable, you will notice it not only when the engine icon (check) appears, but also long before that, when the car’s power drops by half. For example, when you press the gas pedal, the car will not have good acceleration dynamics as before.

What can cause a car catalyst to fail: if you regularly service your car in accordance with the car company's maintenance regulations, then the catalyst should not fail.
The reason for the failure of the catalyst is the untimely replacement of a faulty oxygen sensor, as well as non-regular replacement of spark plugs when the expiration date expires. When the oxygen sensor or spark plugs are faulty, the conversion of carbon monoxide in the catalyst into harmless chemical elements stops, which leads to overheating of the catalyst, which can therefore fail.

The engine is shaking and the “check” is blinking: possible causes of the malfunction

As you know, the injection engine has replaced the carburetor engine mainly due to its efficiency, as well as the reduced amount of harmful emissions into the atmosphere. This became possible as a result of flexible adjustment of the operation of the internal combustion engine using the electronic control system of the ECM.

Chip tuning

Some drivers do chip tuning of the Chevrolet Niva in order to increase engine power. The essence of this procedure is to remove the established restrictions by adjusting the optimal factory settings in the electronic control unit. This procedure helps to extract the additional performance inherent in the motor.

The whole process can be divided into several stages:

Reading the necessary data from the electronic control unit
Making the necessary adjustments
Updating and recording new data

The main advantage of this procedure is:

Engine power increases
Speed limit removed
You can change the fuel type
All factory settings can be returned at any time

The disadvantages include:

High cost of work
The ECU may fail
Increases fuel consumption, reduces system life
Errors may appear

Each specialist has a different attitude towards chip tuning, some consider it useful, while others think that this procedure can negatively affect the performance of the car, while reducing its service life.

To summarize, we can conclude that you can identify error codes on a Chevrolet Niva either independently or using a special device. If malfunctions occur, they must be eliminated as soon as possible, otherwise this may lead to irreversible negative consequences in the operation of the entire system.

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Why did the light come on and how to fix it

There are many reasons for the Check Engine light to come on . The most common reasons for a light bulb to go off include the following problems.

Refueling with low-quality fuel

Most often, the indicator light comes on after filling the gas tank with low-quality gasoline . In this case, you can correct the situation by adding high-quality fuel to the tank. You can also completely drain the gasoline, clean the fuel system, and then refuel with high-quality fuel at a reliable gas station.

Refueling with 92 gasoline

The recommended gasoline for the Chevrolet Niva engine has an octane number of 95 , but the Chevy Niva engine is capable of “digesting” 92-octane gasoline. In this case, the Check Engine warning light may be triggered, since due to insufficient octane number of gasoline, the level of fuel detonation in the engine cylinders increases. Switching to 95 gasoline helps solve the problem.

Low battery

The light may light up if the on-board network voltage is low , that is, the battery is almost discharged. If the car engine starts, then the activation of the indicator does not have any negative consequences. You just need to charge the battery, after which the problem will disappear.

Insufficient engine oil level

Lack of oil causes engine oil starvation . The low level should also be indicated by the oil pressure warning light located on the instrument panel. But sometimes it doesn’t work, and the problem only manifests itself in the Check Engine light coming on. You need to check the oil level, and it is also worth inspecting the engine compartment for leaks. If the level is insufficient, add engine oil to the filler neck.

Resetting or zeroing the Check indicator

Resetting or resetting the Check Engine Light

The sensor is reset and the Check light is no longer on. If this does not happen, contact the service center.