What is the reason why a car shows a yellow engine light?

Reasons for the engine failure light: poor combustion state, engine knocking, internal causes of the engine fault light (poor fuel quality, unclean inside the engine cylinder, and carbon deposits).

Engine failure lights are usually lit for the following reasons:

1. The combustion state is not good.

Poor engine combustion condition is the main reason why the engine failure light is on.

2. Engine knocking.

There are usually three scenarios:

1) Weakness of the car;

2) The car is weak and the engine noise is too loud;

3) There is obviously a knocking sound.

In the first case, some engine fault lights will turn on, some will not, and in the second and third cases, the engine fault lights will inevitably come on.

3. The internal reason why the engine failure light is on:

1) Poor fuel quality;

2) The inside of the engine cylinder is not clean and there is carbon deposit.

When the engine fault light on the dashboard is on, we can try to start and stop the vehicle three times in a row, or turn off the engine battery and pull out the negative pole, wait for 30 seconds to connect it, and then try to start. After doing the above method, see if the engine fault light on the dashboard is still on. The method here is only for the false fault phenomenon of the engine, and if it does not work after trying, please go to a special repair shop to check and eliminate.

Generally, when the engine fault light symbol on the dashboard is on, it cannot be eliminated manually, and it is usually eliminated after troubleshooting with a fault detector in a 4S store.

This engine fault light is yellow, and after it is lit, it proves that the engine system is faulty, so you have to go to the 4S shop to read what fault is reported. I hope you find the following comments helpful in the future.

It should be noted that there are two situations when the engine yellow light on the car dashboard is on, the first is that when we turn on the power supply of the car, the vehicle will conduct a self-test, at this time, not only the engine yellow light will be on, but other fault lights will also be lit together, and then they will be extinguished together, which is a normal phenomenon; The second is that after the car starts, the yellow light of the engine fault is still on, which is an abnormal phenomenon that the ECU is reminding you that the engine is faulty.

Can the engine still turn on with the yellow light on?

Generally, after the yellow light of the engine is lit, the following situations will occur, as for whether it can continue to drive, we can refer to the following statement.

The first is that the car can't start after the light is on, which may be caused by the failure of the fuel pump or ignition parts, and you can't drive it if you want to, so it's better to simply call a tow truck for help.

The second is that the fault light is on, but there is no abnormality in driving, which may only be a sensor failure, or a false failure, in this case, you can continue driving temporarily, but for the sake of safety, it is best to slow down at low to medium speed, and then immediately drive to a nearby repair shop for maintenance.

The third is that the engine fault light is on, the vehicle can be driven, but there are symptoms such as severe shaking and acceleration weakness, don't take the courage to try your luck in the face of this situation, continue to drive may increase the fault, damage the engine, or cause other failures, so it is not recommended to continue to drive, you should call for help**, wait for support.

The engine fault light is on yellow, and you should go to an auto repair center

1. When the engine fault light on the dashboard is on, you can try to start and turn off the vehicle three times in a row, or turn off the negative pole of the engine battery, wait for 30 seconds and then connect it, and then try to start. After doing the above method, see if the engine fault light on the dashboard is still on.

2. It should be noted that when the engine fault light on the general dashboard is on, it cannot be manually eliminated, and it can usually be eliminated after using a fault detector in the 4S store for troubleshooting. The above method is only for the false fault phenomenon of the engine, if it does not work after trying, please also go to a special repair shop to check and eliminate.

The car shows the engine yellow light, which may not work properly without the engine sensor, the intake air temperature sensor.

In this case, there are many reasons why the engine lights up yellow, such as: 1. Sensor failure; 2. Fuel supply system failure; 3. Ignition system failure; 4. Failure of intake and exhaust systems.

In view of this, the precautions for daily use of the engine are: 1. Use clean fuel, and the impurity content in the fuel will lead to the wear of the electric fuel pump; 2. Replenish fuel in time, and the electric fuel pump of the engine should meet the sufficient fuel and stable working pressure of the injection system; 3. When the ignition switch is turned on, do not disconnect the electrical equipment circuit; 4. Clean the fuel system and air intake system regularly, if the fuel system is not clean, it will cause a series of faults such as unobstructed or even blocked oil circuit, poor valve closing, poor fuel injection atomization, insufficient fuel supply, and low oil supply pressure, which will directly affect the normal operation of the engine.

The main reasons why the engine displays the engine yellow light are as follows: 1. When the car is turned on and the power supply is turned on, the vehicle will conduct a self-test, at this time, not only the engine yellow light will be on, but other fault lights will also be lit together, and then they will be extinguished together. 2. After the car starts, the yellow light of the engine fault is still on, which is the ECU reminding the engine that there is a fault.

For example, when these sensors are damaged, poor contact or signal interruption, the ECU of the car cannot accurately obtain the engine data, and the engine fault light will be turned on.

The reason why the yellow engine light of the car is on: car self-inspection, engine failure.

There are two situations when the engine yellow light on the car dashboard is on, the first is that the light will be on when the car is self-tested, when the power of the car is turned on, the car will enter the self-test state, at this time, in addition to the engine yellow light will be on, other fault lights on the car will also be on, and the self-test time will last for about three seconds.

The indicator light on the dashboard will turn off, which is normal. The second is that after the car starts, after the self-inspection is completed, the yellow light of the engine will be on all the time, which indicates that the engine has some faults and needs to be repaired in time.

Engine

An engine state refers to a machine that can be used to convert other forms of energy into mechanical energy, including internal combustion engines (gasoline engines, etc.), external combustion engines (Stirling engines, steam engines, etc.), electric motors, etc. For example, the internal combustion engine usually converts chemical energy into mechanical energy. An engine applies to both a power generation unit and an entire machine including a power unit (e.g

gasoline engines, aero engines).

The engine was first born in England, so the concept of the engine is also derived from English, and its original meaning is the "mechanical device that produces power". The body is the skeleton that constitutes the engine, is the installation foundation of the engine's various mechanisms and systems, and all the main parts and accessories of the engine are installed inside and outside to bear various loads.

The yellow light of the automobile engine refers to the fault of the engine, and the reasons for the light are: 1. The water temperature gauge and air flow meter are damaged; 2. Poor engine maintenance; 3. The inlet air temperature sensor and oxygen sensor are damaged; 4. The quality of the fuel used is poor; 5. Failure of spark plug and ignition coil; 6. Fuel pump failure or oil circuit blockage; 7. The air filter element is dirty. The solution to the bright yellow lights of the car engine is:

1. Replace the water temperature gauge and air flow meter; 2. Timely maintenance and launch a fierce attack machine; 3. Replace the temperature sensor and oxygen sensor of the inlet sail; 4. Replace the fuel with a higher grade; 5. Replace the spark plug and ignition coil.

It should be that the engine fault light is on, find a professional repair shop to use a decoder to look at it, and eliminate the fault location through the fault code.

Hello dear, <>

I am glad to answer for you, the car engine light is yellow, it means that there is a problem with the engine of the car, this situation is more complicated, the reasons include the engine temperature is too high, the carbon deposit is serious, the engine is missing cylinders, the lack of oil, etc. When the car engine light is on, it is time to stop and check. 1. The engine temperature is too high

After the car is driven at high intensity or for a long time, the engine temperature will rise and not answer, which will affect its normal operation. This situation only requires the engine temperature to be naturally cooled to the normal range. <>

There are two situations in which the engine light is yellow. 1. The normal self-inspection status of the car; 2. Prompts you that the engine is faulty, which is an abnormal condition.

1. The normal self-inspection status of the car;

When you connect to the switch power supply of the car, the car will carry out a self-inspection of the combustion mold, and the yellow light of the engine will be lit at this time, and other fault lights will also be turned on together, and then they will be extinguished together, which is normal.

2. The engine is faulty.

After the car is running, the yellow light of the engine fault is still on, which is also the ECU is prompting you that the engine is faulty and belongs to the abnormal condition.

It may be that the air intake system is clogged or leaking; Or the engine itself has wheels and serious mechanical failure.

If the timing of the engine is not accurate, it will cause the engine to fail; It is also possible that the ignition system is malfunctioning.

The ignition system consists of a spark plug and an ignition coil, if the spark plug or ignition coil is abnormal, it is likely that one of the engine cylinders will not run, and the engine fault light will also be lit.

What are the precautions for daily use of the engine?

1. The use of clean fuel, the content of impurities in the fuel is large, which will lead to the wear of the electric fuel pump.

2. Replenish fuel in time, and the electric fuel pump of the engine should meet the sufficient fuel and stable working pressure of the injection system;

3. When the ignition switch is turned on, do not disconnect the electrical equipment circuit;

4. Clean the fuel system and air intake system regularly, if the fuel system is not clean, it will cause a series of faults such as unobstructed or even blocked oil circuit, poor valve closing, poor fuel injection atomization, insufficient fuel supply, and low oil supply pressure, which will directly affect the normal operation of the engine.