Is the fuel consumption suddenly increasing just because the engine deposits carbon? Is there any more?

Sometimes when you drive, you will suddenly find that the instantaneous fuel consumption will become particularly high, and it will not be able to fall for a while, and you will feel much higher fuel consumption when you return home. What are the reasons? Feeling your driving skills is no problem, but why the sudden high fuel consumption it? The following masters summarize the four major factors that will help you improve your fuel consumption.

One reason: too much carbon in the engine

The cause of too much engine carbon deposition in the short term. Mainly used inappropriate oil products. This situation is more likely to occur after long-distance driving returns or transfer of vehicles to others. Drive long distances. Certainly will add fuel everywhere, even if the same number of fuel, the quality of oil around the country is not the same, it is likely to misuse the inappropriate oil. It is even more difficult to control the added oil quality by transferring the car to others.

Solution: Add a certain amount of detergent at the time of refueling. If the effect is not obvious, it means that there is more carbon deposit in the engine. In this case, the car must be opened to the 4S shop. The professional technicians clean the carbon deposit in the engine. . And after cleaning. It is best to run a high speed car, which is conducive to increase the amount of exhaust gas, so that the larger airflow with a larger volume of carbon particles.

The second reason: Vehicle oxygen sensor is damaged

As an automotive interior control unit. The oxygen sensor is mainly used to monitor the ratio of engine oil and gas. Once it is damaged, it will cause the imbalance of engine oil and gas ratio, and the fuel consumption will suddenly increase, and the oxygen sensor will be damaged. While the vehicle is running, the exhaust pipe will emit exhaust gas with a darker color.

Solution: Replace the oxygen sensor in the regular 4S shop. Some owners may find it cheaper to repair on the street. However, after the replacement, it must be detected after the hot car (the oxygen sensor is working in high temperature) and then detected by the detector, and seeing that there is a fluctuating signal output is the real goods. Because the oxygen sensor does not work even if the vehicle is not working. Even if the counterfeit goods were installed, it could not be read directly from the meter.

Reason 3: "Three filters" have not been changed for a long time

The vehicle is in use. The three filters (oil filter, air filter, fuel filter) must be replaced regularly. If they are not replaced for a long time, they will become dirty and affect the use of the engine control unit to send error messages, resulting in oil Insufficient combustion and increased engine carbon deposition.

Solution: According to the number of kilometers traveled, regular maintenance of the vehicle to replace the "three filters."

Reason 4: There is a problem with a control unit of the engine

Although the reliability of the engine's electronic control unit is very high, but in those vehicles with a long life, it is inevitable that this or that failure. If an integrated block is damaged and the bolts are loosened, an electronic component solder joint is opened and the resistance and capacitance elements fail. Problems with the engine control unit will directly lead to difficulties in starting the vehicle, fuel consumption increase, poor power performance, and exhaust gas thickening.

Solution: Open the car to the 4S shop for a full physical examination.