Excuse me, the engine fault light is on, the engine s fault light is on

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:

The first case: the car is weak;

The second case: the car is weak and the engine noise is too loud;

The third case: there is an obvious 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) The fuel quality is not good.

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

The engine fault light is used to show the working condition of the vehicle engine, when the key door is opened, the vehicle self-test, the indicator light is lit and automatically extinguished, if it is always on, it means that the engine of the vehicle has a mechanical failure and needs to be repaired.

Engine indicator refers to the indicator light used to show the working condition of the vehicle's engine. The indicator light is used to show the working condition of the vehicle engine, when the key door is opened, the vehicle self-test, the indicator light is lit and automatically extinguished, if it is always on, it means that the engine of the vehicle has a mechanical failure and needs to be repaired.

With the development of automobile gasoline engines in the direction of high speed, high compression ratio, high power, low fuel consumption and low emissions, the traditional ignition device has not adapted to the requirements of use.

An engine is a machine that can convert other forms of energy into mechanical energy, such as internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, the internal combustion engine usually converts chemical energy into mechanical energy.

The vehicle fault light is on, which can be solved by the positive and negative power supply.

Go to the repair point and use the computer to test.

Hello, I am happy to answer your car master exclusive technician Concentrate on your heart and sincerely answer your car questions, and find solutions and methods for you to ask questions, engine failure lights are divided into two situations. The first EPC fault light is on. There are many reasons for the fault light, such as throttle failure, accelerator pedal failure, camshaft position sensor failure, and line failure.

The second exhaust emission fault light is always on, and there are many reasons why the fault light is on, such as oxygen sensor failure, line failure, three-way catalytic converter failure control unit failure, etc., it is necessary to use a diagnostic instrument to detect which component has a problem, and then do troubleshooting. The third exhaust emission light flashes, the fault light flashes to indicate that there is a fire, and it is necessary to use a diagnostic instrument to detect which cylinder is on fire, and then check the cause of the fire. I hope I have been helpful to you, and if you have any other questions, you can continue to ask questions.

Engine failure lights can be fuel quality issues, cold starts in winter, excessive carbon deposits, etc.

When the fault light is on, first check whether the engine can run normally, whether there are signs of shaking, or black smoke, difficult to start, if so, try not to start, this is likely to be a problem with the engine.

Generally speaking, if there is a lack of cylinder in the engine, the phenomenon reflected by the car may increase fuel consumption, black smoke, weak acceleration, serious engine shaking and relatively loud noise, and may also cause the vehicle to stall, when the engine is missing, the corresponding engine fault light will be on.

Inspect the vehicle

The vehicle lights are generally caused by the fuel emission system, and the vehicle is started and extinguished when the light is on, and the vehicle is started and extinguished twice.

When the engine is running, the fuel injection of the fan Zheng injector nozzle into the cylinder is atomized, and the atomized mixture meets the cold cylinder wall is condensed on the cylinder wall, which is not conducive to the ignition combustion of the engine. If the temperature of the red wall of the engine is very high, the mixture enters the cylinder and encounters the wall of the boiling soup is not condensed and gasified, and the mixture gasified at high temperature is conducive to the combustion of the mixture, which is conducive to the smooth and normal operation of the engine.

Hello dear! Thank you for waiting, if the engine fault light is on, then it means that the engine has an electronic control system failure, in this case, it is mainly caused by a broken sensor or an actuator. If you want to solve it, you must connect the vehicle with the help of a special decoder, then read the corresponding fault**, and then do the corresponding inspection and repair according to the meaning of the fault**.

For example, if there is a fault of a certain sensor in the engine, at this time, it is necessary to check the relevant wiring of the sensor, and at the same time consider replacing the sensor. Kiss! I hope mine can help you, in addition, you can also click on my avatar to follow me, so that if you have any questions in the future, you can click on my avatar to consult me!

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Engine failure light on reason:

First, the failure of the vehicle engine emission system, this fault is the most important reason for the vehicle engine failure lamp, and it is also one of the most reasons, if this fault phenomenon occurs, most of them are the cause of carbon deposition in the vehicle engine, or the problem of fuel quality.

Second, the fault lamp is lit due to the damage of the sensor related to the vehicle engine system, then most of the fault is the problem of the oxygen sensor or the intake and exhaust camshaft adjustment solenoid valve, go to the repair shop or 4S shop to do the corresponding decoding with a computer.

Third, the linkage failure caused by the transmission system or brake system problem, then this fault will generally be accompanied by the dashboard, there will be other fault reminders, brake system, focus on checking the ABS pump and wheel speed sensor. The fault light went out just after it was finished, and it came back on a few days later.

Exclusion Method:

1. The yellow symbol light indicates that the engine is faulty, but the fault does not affect the normal operation of the engine, but it is necessary to check and repair. After the power is cut off, the fault light is still not extinguished. In this case, the engine did fail, so we needed to go to the repair shop to check.

2. The red symbol light indicates that the engine has a serious fault and needs to be repaired immediately under normal circumstances. If it can be used urgently under special road conditions, you need to pay attention to the working status of the engine at all times.

Reasons for engine failure light: 1The inside of the engine cylinder is not clean and there is carbon deposit.

After a certain period of use, there will be some carbon deposits accumulated inside the engine, which will change the design parameters of the engine itself, and at the same time, the properties are unstable, which will accumulate heat, resulting in disorderly ignition of the engine, thereby causing engine detonation. In this first branch case, the engine failure light will illuminate. 2.

Poor combustion state of the engine is the main reason why the engine failure light is on. In the design of the car, in order to ensure that the engine is in good working condition and ensure the normal working life of the engine, an oxygen sensor is designed and installed on the engine to monitor the combustion state of the engine. Once the engine burns badly, it will not only pollute the environment, but also lead to fuel waste and excessive wear and tear of the engine.

3.The fuel quality is much worse, and riders who find that the engine failure light is on have a feeling that the engine failure light suddenly comes on after filling up a tank of fuel. Due to the requirements of the engine for the quality index of the oil, especially with the higher and higher requirements of various specifications for the engine, the requirements for the oil quality index are also getting higher and higher.

Hello <> dear, imitation

We are glad to answer for you, the reasons why the engine failure light is on are: 1. Sensing bucket wax problem: when the sensor is damaged, the contact is poor or the signal is interrupted, the ECU of the car cannot accurately obtain the engine data, and the engine fault light will be on; 2. Maintenance problems:

The owner's failure to maintain it on time will increase the burden of engine operation, which can only be reminded by the fault light. 1. Start and stop the vehicle three times in a row. 2. Turn off the engine and pull out the negative pole of the engine's battery, wait for 30 seconds and then connect it, and then try to start.

3. It can be eliminated after using a fault detector for troubleshooting in a 4S store.

Summary. Dear, glad to answer for you! Reasons why the engine failure light is on:

Engine oil: The amount of oil is insufficient, resulting in a drop in oil pressure and no oil on the pump. Air Intake System:

When there is a problem with the air intake system, it burns poorly, causing the engine failure light to come on. Exhaust system: There is a problem with the fuel exhaust system.

Dear, I'm glad to give you a slow answer! The reason why the engine failure light is on: engine oil:

The oil quantity is insufficient, resulting in a drop in oil pressure and no oil on the pump. Air Intake System: When there is a problem with the air intake system, it will burn poorly, causing the engine failure light to come on.

Disturbing plexus exhaust system: There is a problem with the fuel exhaust system.

Extended Information; The solution to the engine fault light is on: the engine fault signal is sent by the ECU, one is a yellow symbol light, indicating that the engine is faulty, laughing but the fault does not affect the normal operation of the engine, but it needs to be inspected and repaired; One is a red symbol light, which indicates that the engine has a serious fault and normally needs to be repaired immediately.