Motor check on Opel. What if the check Engine light bulb came across? Is it possible to continue moving at a burning light bulb

Opel Insignia came to the diagnosis. The driver's complaint - CHECK Engine caught fire. At the same time, the engine works smoothly, the car goes fine. We connect the device - gives an error P0328 "High voltage of the detonation sensor".

By analogy with Skoda, it can be assumed that we are talking about the wiring break, but, as it turns out, the problem is in the other.

The first thought - detonation sensor itself is defective. But where then is there a high voltage? Manual proposes to check the volts on both wires of the sensor connector.

It must be 1-2 V and 2.5-3.5 V, respectively, when the ignition is turned on. This is clear, but where is the detonation sensor itself?

And here is the answer: on the back of the cylinder block, between the starter and the generator!

We proceed to the voltage measurement. We are trying to sweep the connector from above, but in the process we understand: "Someone has already been here!" Wiring harness is not fixed, it just dangles in the air. An excellent reason to ask the client, because it is obvious that something did something with the car before delivering to our service.

Quality diagnostics - the key to calm

The client was a fun woman; She also told the history of the car repair, which was more like a heartbreaking thriller. It began with the fact that Check Engine would freeze on the go. On the diagnosis in the neighboring garage of the Mount Master "sentenced" spark plugs. The meter is launched - the candles are original, minus 2000 rubles. From the wallet.

After replacing the candles, an alarm icon on the panel did not go out, and the engine continued to work with interruptions. The car was taken to a more advanced service, where "specialists" found a problem in the ignition module. The hostess buys the original spare part. Minus 5000r. But the fault does not leave.

Long research led masters to the thought that the engine needs to go through. Allegedly, the piston can ruin. For Turbomotors Opel is not uncommon. But we have an ordinary atmospheric of 1.8 liters. Mileage on the odometer is only 20,000 km. Piston mark? Hard to believe. But the "engine" still went over - for 50,000 rubles.

The engine earned exactly, but the ominous Icon Check Engine did not swell.

As a result of the in-depth diagnostics, it was concluded that it would be nice to change the detonation sensor - they say, the error explicitly indicates a malfunction in this chain. Original detonation sensor costs 3000 rubles. Note that all amounts are approximate and do not take into account the cost of diagnosis.

By the fact that the car was brought to us, you can guess: the replacement of the detonation sensor did not help. After such an exciting story, we could not remain indifferent and agreed to the diagnosis of another NORMO-hour.

Finding out the appearance of an error on the car dashboard

Following the manual, we checked the tension on the detonation sensor connector. There are 0 and 5 V on two wires. Far from normal values. It's time to print the engine electrical equipment.

On the connector there must be a wire of black and yellow and purple gray. What about us?

Although the chip and dressed completely, the wires are connected not to those colors. To the right of the chip is visible another same two-pipe connector - to the generator. The first thought - and did not confuse them?

We turn to the schemes again - this time to the generator schemes. Everything is fine here: there is a chip with the correct wires of gray and brown. For the sake of interest, we changed the connectors in places - snatch! Chat easier! Now it remains to understand: what happened to the wires on the detonation sensor? After all, according to the scheme, they must be different. Maybe the scheme is incorrect?

Remove the connectors on the engine control unit. We see that the wires of the right colors are black and yellow and purple-gray. Here is a riddle - they can not change the color on the road!

The attempt was simple: another sensor was hidden behind the drive shaft.

This is the oil level sensor. And also with a duplex connector. This is the same connector that it should stand on the detonation sensor.

Thank you, Opel! It is necessary to think in one place to collect three sensors with the same connectors. Ignorance or inattention "specialists" led to the enormous financial spending of the car owner. For the replacement of good parts I had to give 60,000 rubles.

We have a hostess left money only for one and a half hours of diagnosis. I did not have to change anything. This is the main quality of a good diagnostic - the ability to thoroughly check everything that is possible, and only then advise the repair. Order diagnostics only from professionals - it is much cheaper it comes out!

Many of us have come across such a problem as the inclusion of the engine icon indication (Check Engine ...), the appearance of which scares car drivers. We offer you the 5 most common reasons for which the engine check lights up on the dashboard.

The appearance of the engine indication icon occurs, as a rule, without warning. The reason for the appearance of Check Engine cannot be immediately understood. Even if there is a car diagnostic in the car (for example, in such cars, as,), which scans all the car systems on errors and when they are presented, displays the decryption to the information panel, the causes of the engine check will not be decrypted.

For most drivers, the appearance of this warning icon on the instrument panel means the need to urgently go to the auto repair shop to diagnose and eliminate the reasons for which the warning sign "engine check" appeared. But in most cases, in most cases, when the "Check" appears, it is possible and in some cases, it is possible to eliminate the cause independently without a trip to the car service, which will save your money.

1. Replace oxygen sensor (lambda probe)

The oxygen sensor in your car is part of the exhaust exhaust system, which controls how much oxygen has not burned in the engine combustion chamber. This sensor helps to control the fuel consumption of the car. The oxygen sensor malfunction (lambda probe) means that the automotive computer receives not the correct data, which can significantly increase fuel consumption and reduce engine power. Most cars have from 2 to 4 oxygen sensors. If you have a home automotive error scanner, then you, by connecting it to the car, can easily find out what sensor must be replaced.

For whatever reason, the oxygen sensor in the car comes into disrepair: Over time, the sensor is covered with a layer of spent and engine oil (oil soot), which reduces the accuracy of the sensor indicators for adjusting the gasoline mixture and the optimal distribution. The fault of the oxygen sensor in the car leads not only to, but also to the increased content of the harmful substances of CO2 in the exhaust.

What needs to be done: If you do not change the faulty automotive oxygen sensor, then this may lead to the failure of the catalyst of your car (can burst), which will turn into expensive repairs. The cost of new catalysts is very high due to the content of precious alloys in them. On some cars, catalysts several pieces whose cost can reach up to 90,000 rubles. So do not pull with the sensor replacement. Although the sensor replacement and its cost is not very small, but it is incommensurable with the cost of the exhaust gas neutralizer system. You can also save on a replacement by making it yourself. Many auto operating manuals have detailed instructions, as you can independently replace the oxygen sensor. If you know where the oxygen sensor is located, then you will not be much difficult to disconnect the defective "lambda probe" and replace it with a new one. Remember that it is impossible to pull with the replacement of this important item!

2. Check the fuel tank neck

Many drivers in most cases, when the "engine check" appears, will think about serious problems in the car engine, but they will not even think to check the tightness of the fuel system, which can be broken due to a defect or not sufficiently tightened with a fuel tank. This is a very common cause in the appearance of the engine "Check" engine.

Cause of error appearance: The leakage of the fuel system due to air transmission, the fuel tank fuel cap will increase the fuel consumption of the car, to which the car's diagnostic system is issued an engine error by turning on the "Check Engine" indication on the instrument panel of the automotive instruments.

What needs to be done: If, when the "Check" appears, your car has not lost power, and there are no sound signs of engine damage (knock in the engine, hum, creak, etc.), then check the tightness of the gas tank. It is possible that the lid of your fuel tank has cracks or is not tightened enough. If the lid was not tightened enough, then tightening it to the end, continue the car by car for a while to watch the engine error disappear. In order to prevent the occurrence of the engine check for this reason, check the fuel tank neck cover regularly. Remember that periodically the cover must be changed for a new one!

3. Car exhaust gas catalyst

The car catalyst helps the car make the exhaust of the motor exhaust gases are more environmentally friendly. It converts carbon monoxide and other harmful substances in harmless compounds. If your exhaust exhaust catalyst has become unusable, you will notice it not only when the engine icon appears (check), but also long before that when the car's power falls 2 times. For example, when you press the gas pedal, the car, as before will not have good overclocking dynamics.

Due to which the automotive catalyst may fail: If you regularly serve your car, in accordance with the regulations, the automotive company, then the catalyst should not fail. The main reason for the failure of the catalyst is the late replacement of a faulty oxygen sensor, as well as not regular replacement of spark plugs, at the end of the expiration date. When the oxygen or spark plug sensor is faulty, then the conversion of carbon monoxide in the catalyst in harmless chemical elements is terminated, which leads to overheating of the catalyst, which due to this may fail.

What needs to be done: If your catalyst has become unusable, then you cannot ride a car, since the engine will not work correctly, warning about this indication on the dashboard of the engine icon (check). Also, you will be very much increased fuel consumption, and the engine will be missing. Although the catalyst replacement is very expensive repair, it is not where not to go from repair. Although there is an alternative to replacing the catalyst on the planeencitel, but this is not 100 percentage option. Unfortunately, if you are not an experienced car mechanic, you cannot replace the defective exhaust gases catalyst yourself. In any case, you will have to contact the car repair shop. Remember that the timely replacement of oxygen sensors and spark plugs protect your catalyst from breakdown!

4. Replace air consumption sensor

The air consumption sensor adjusts how the amount of air must be added to the gasoline mixture for optimal fuel ignition. The sensor constantly reports the car computer data on the amount of oxygen supplied. The faulty mass flow sensor increases the fuel consumption, increases the CO2 level in the exhaust gas, and also reduces the engine power and the smoothness of the stroke. Also, with a faulty sensor, there is a bad overclocking dynamics. In the cold time, the car with a faulty sensor is badly started.

What are the reasons for the failure of the mass flow sensor: Most sensors breakage occur due to improper installation of the air filter when it is planned. Also, if you do not regularly change the air filter, as required by the car maintenance regulation recommended by the manufacturer, the mass flow sensor can fail.

What needs to be done: Theoretically you can ride a broken air flow sensor for a long time (several weeks or months). But you will notice that the longer you drive, the more fuel consumption consumption increases. Replacing the sensor in the car service is not as expensive, since the work itself does not take much time and is sufficient. Basic costs are related to the cost of the sensor, which on some cars can be 11,000-14,000 rubles, if it is an original sensor or up to 6000 rubles, if an analog substitute. Independent sensor replacement is very simple. But due to the small cost of work on the replacement of the sensor, you can entrust this work and the master in the car service. Remember that you need to regularly change the air filter, observing the regulation of the car!

5. Replacing the spark plugs and high-voltage wires

Spark plugs in the car are the main details to ignite the fuel mixture. With defective ignition candles, the spark is incorrect for inflammation of the gasoline mixture. In defective candles, there is often no spark or incorrect spark interval, which affects the improper operation of the engine. With the wrong work of the candles during acceleration, especially from the scene you can feel small shoes.

What are the reasons for the failure of the spark plugs: Most of the spark plugs in cars until 1996 release must be changed every 25,000-30,000 kilometers. In newer, the ignition candles are more than 150,000 km. However, these terms of planned replacement of spark plugs may decline at the expense of various factors associated with fuel quality and driving style.

What needs to be done: If your candles did not change for a long time, or you feel in the work of the engine failures associated with the ignition, then it is necessary to immediately replace them with new ones. Do not try to save on a late replacement of spark plugs, since the cost of candles is not very expensive, as well as work to replace them. By changing the old spark plugs, you will improve the engine operation and reduce the fuel consumption of the car. Independently change the spark plugs quite easily. Mostly they are in easy accessibility under the hood of the car. You need an ordinary candle wrench to unscrew the candles from the engine. It is also desirable to monitor the state of high-voltage wires, since over time they can come into disrepair and pass electricity, which is transmitted to the ignition candles, which will reduce the spark strength. Remember that the regular replacement of the candles, in accordance with the regulatory of the maintenance of your car, retains your exhaust gas testing catalyst from breakdown, and also improves the operation of the engine!

If the Check Engine indicator light lights up on the dashboard of your car (or simply burns the "check"), you should be at least tolerance. The reasons for this can be the most diverse - from a loosely twisted lid of the gas tank to serious problems with the engine.

What indicates the Check Engine indicator

The name of the Check Engine indicator is literally translated as "Check the engine". However, the engine during sunbathing or flashing the bulb can be completely without anything. The light indicator may indicate problems in the fuel supply system, failure of individual ignition elements, etc.

Sometimes it can be a very small problem - for example, an unloaded gas tank cover or a catalyst malfunction. Nevertheless, the indicator signals cannot be ignored in any way, as this may turn into serious problems.

Sometimes the reason for the lighting of the indicator may be poor fuel quality. So do not be surprised if, after refueling on an unfamiliar gas station, you will see a flashing light bulb Check Engine.

Typically, the indicator is located on the car dashboard under the engine speed pointer. It is indicated by a schematic engine or a rectangle with the inscription Check Engine or just Check. In some cases, inspiration is shown a zip sign.

Is it possible to continue moving at a burning light bulb

Brake pads were worn out, the time came the next one, the speed was incorrectly shown, low-quality fuel is used, the on-board voltage dropped - all this can be a reason for sunburning the Check indicator. First of all, you should check the motor. If the cause of the signal is turned on are engine malfunctions, continue to move dangerous.

The problem is exacerbated by the fact that it is impossible to determine the malfunction of the modern engine in the smell or color. You should contact professionals that, using the scanner, will identify a malfunction if, of course, it is available.

Burning Light Check may indicate different breakdowns - it is better not to ignore it

Therefore, if after re-starting the car, the light bulb did not go out, you can move on it only to the nearest car service. There will be a comprehensive diagnostics of the engine and its systems.

The operation of the car with a burning Check Engine icon leads to increased fuel consumption, unstable operation of the motor, reduce the traction characteristics of the car. Moreover, in this case, the car owner can lose the car repair guarantees.

Why light bulb caught fire and how to fix it

The main situations in which the indicator lights up, and the recommended vehicles of the motorist actions:

1. If Check Engine when starting the car lights up and immediately goes out, no engine damage. The cause of sunbathing is most likely harmless - the loss of the fuel tank cover or its failure. It is enough to wrap it tightly and check whether the warning disappeared.
2. If the indicator caught fire during the movement, you should stop and check the wires. You may find a hood-free cable or an open terminal of the battery. This applies to the entire hinge - wires, hoses, etc.
3. If the light flashes while driving, you should stop and check the sounds published by the engine, pay attention to the oil level, inspect the lateral parts of the motor. If visually explicit violations are not detected, it is recommended to get to the nearest car service and conduct diagnostics.
4. If the engine works normally, and Check light flashes, most likely, the ignition failure occurred. You should check the candles and the coil, pay attention to the quality of fuel. To do this, it is better to contact the nearest autodiagnostic center.
5. If the indicator is on constantly, it is necessary to stop, unscrew the candles and check the gap. Clauses that exceed 1.3 may be a reason for sunbathing light bulb.
6. In addition, when burning "check" is usually checked. In any car service there are special testers that allow you to determine the wiring isolation wear.
7. The faulty fuel pump may become the cause of the lighting of the light bulb. You should stop and listen to the sounds published by the fuel pump. Normal is considered smooth buzz without clicks and pauses. If extraneous sounds appear, the pump should be dismantled, washed from the inside and clean the filter.
8. The cooling fluid temperature may indicate seriously engine malfunctions. If it is above 85-90 degrees, and when moving, Check Engine lights up, the engine is definitely faulty. In this case, it is desirable to call a tow truck or at a low speed to get to the nearest car service.

We have already noted that Check lights up each time the engine starts yellow or orange. This is normal if the flashing lasts no more than 3-4 seconds and stops along with the flashing of other dashboard indicators. Otherwise, the above-recommended action should be performed.

Video: Check sensor lights up

https://www.youtube.com/embed/uqdkfkx4mle

Table: Causes of lighting indicator Check Engine and proposed actions

Reset or reset the check indicator

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

The fact is that the "trace" of errors remains in the memory of the computer. In this case, you should "reset" or "reset" the indicator readings. This can be easily done independently by performing a number of simple operations:

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

The CHECK ENGINE indicator lighting on the dashboard almost always requires an immediate stop of the car. The use of the recommendations given in the article will help you avoid the complex expensive engine repair. Good luck on the roads!