Today, almost in any car, be it from a foreign or domestic manufacturer, on the dashboard there is an indicator called "Check Engine". In an automobile owner environment, it is just referred to as the "Check". Safety of this indicator, as a rule, carries a lot of trouble for the owner of the car. In this article we will analyze in detail what "Check Engine" is and what to do with its sunbathing.

Check Engine what it is

We will try to figure out what is all the same this notorious "Check Engine". The literal translation of the phrase "Check Engine" with English sounds like "Check engine". Saving this indicator means that the engine control unit directly detected a malfunction in the operation of the car's power unit.

Initially, on the very first cars with the "Check Engine" indicator, a small computer was installed with it, which was responsible for the work of the carburetor. The tagged "Check" meant the failures in his work. In the modern cars, the responsibility of the "Check Engine" indicator has become more extensive.
So today the "Check Engine" indicator can light up when the engine is malfunction, the ignition system, etc. Also the reason for the lighting of the indicator can be not high-quality fuel.

The driver is burning

First of all, it should be said that the "Check Engine" indicator lights up in two cases, namely:

• The indicator lights up when the engine starts or turning on the ignition. If in this case the indicator goes out after a short period of time, then there are no reasons for concern.
• The indicator lights up at startup or during the vehicle operation and is lit for a long time. This is a clear sign of the emergence of a fault in the car.

Important! In case of sunbathing the notorious indicator "Check Engine", in no case should it be necessary to ignore it. It can greatly aggravate the problem, and with a large share of probability will turn into an expensive repair of the car.

And so, when sunbathing the "Check Engine" indicator, the driver should take the following actions:

1. It is necessary to listen directly to the operation of the engine for tapping and other extraneous noise;
2. Visual inspection on the subject of oil lifettes and external damage;
3. When explicit faults are found, they need to be eliminated by arrival home or contact a specialized auto repair shop.

Light check, the most frequent causes and ways to eliminate

Causes of the "Check Engine" indicator light can be diverse from a low oil level in the engine to malfunction in high-voltage vehicles of the car.
And so, we will analyze the main reasons for sunbathing the "Check Engine" indicator and how to eliminate them:

• Low oil level in the engine or gearbox. It is solved by an elementary plot or oil replacement. How to check and when changing the oil in the engine and gearbox can be read in our article "Replacing the oil in the engine and gearbox";
• Violation of the fuel tank tightness, or simply speaking, not tightened or damaged cover of the fuse. Solved by replacing or tightening the lid;
• Faulty spark plugs. This problem is solved by placing a gap or direct replacement of candles. Read more about the faults of the spark plugs and their elimination methods can be read in our article. "Car spark plugs, selection of spark plugs";
• Low fuel quality. It is solved with a plum of poor fuel from the fuel tank and the fill of the new one. Freshing fuel tank and replacing the fuel filter is often required;
• Faults in the work of the fuel pump. The sign of this problem is the insufficient pressure in the fuel ramp. It should be at least a 3-atmospheres, is eliminated by replacing the fuel pump;
• Dirty fuel filter. Solved by replacing the fuel filter;
• Fault catalyst exhaust gases. Solved by replacing the catalyst;
• Malfunctions of the Lamde Probe sensor. Solved the replacement of the sensor;
• Fault of the ignition coil. Detail how to check the ignition coil is written in our article. "Ignition coil, how to check the ignition";
• High voltage wires. It is solved by testing and replacing in cases of high-voltage wires.

As clearly from the above reason for the lighting of the "Check Engine" indicator can be both completely harmless and extremely seriously requiring emergency intervention.
List of the reasons for sunbathing the "Check Engine" indicator, in the frequency of occurrence:

1. Lamd-probe sensor;
2. Not tightness of the fuel tank;
3. Catalyst;
4. Spark plug;
5. Not high-quality fuel;
6. Fuel filter.

How to check high-voltage wires, instructions for the driver

We will analyze in more detail how to check the health of high-voltage wires when sunbagging the "Check Engine" indicator. To check high-voltage wires, we will need:

• Stainless steel tank;
• Water;
• Salt;
• Multimeter.

1. And so, checking high-voltage wires is performed in the following sequence:
2. Pour water in the stainless capacity;
3. Add salt into water and mix, before dissolution;
4. Turn on the Multimeter mode of the megommeter;
5. Lower the high-voltage wire into the water container so that both ends are on the surface;
6. We draw one multimeter probe to one of the ends of the high-voltage wire;
7. The second probe multimeter is drawn to the tank;
8. We look at the testimony of the multimeter;
9. We repeat this procedure with all other high-voltage wires.

Important! The resistance of the isolation of high-quality high-voltage wires should be at least 500 com. If the insulation resistance does not correspond to the norm, it is necessary to replace high-voltage wires.

Tips of professionals

• If you do not have sufficient knowledge and experience in the device and repair the car. It is recommended to contact a specialized service center, where they will conduct high-quality diagnostics and will find out the exact cause of the "Check Engine" indicator.
• In some cars, due to the characteristics of the "Check Engine" indicator design, it is elementary due to the non-tightened fuel tank cover. This is when the fuel pressure sensor is installed directly in the fuel tank of the car. For example, the owners of Renault Logan are faced with this problem.
• How to properly replace the oil, check the candles and the ignition coil can be read on our website in the articles "Replacing the oil in the engine and gearbox", "Car spark plugs, selection of spark plugs" and "Ignition coil, how to check the ignition" respectively.
• As mentioned earlier, despite the fact that the causes of the "Check Engine" indicator may seem non-critical, in no case should not ignore this problem. During the diagnostics and the eliminated problem will allow you to avoid costly repairs.