The engine failure light is too strong, is it because the engine is going to be overhauled?

There are many reasons why the engine failure light is on, and the common causes can be roughly boiled down to the following: <>

1.Poor gasoline quality will cause the mixture to burn inadequately in the cylinder, resulting in a fault light and carbon deposits. <>

2.The presence of carbon deposits in the inlet tract and piston tip will lead to poor atomization, which will lead to insufficient combustion and the failure light will be on. 3.

When the cold car starts, especially when the weather temperature drops sharply, due to the temperature correction problem of the computer, the fault light will be on when starting, but as long as the temperature drops to a certain temperature, it will be relatively stable after the volt change. 4.Excessive engine mileage and weakened spark plug operating characteristics can cause the fault light to illuminate.

5.Too much carbon deposition and difficult ignition will lead to the reverse breakdown of the ignition coil, resulting in the failure of the ignition coil, causing poor ignition, resulting in incomplete combustion, and the fault light is on, which has a distinctive feature that the engine is always seriously shaking when the ignition coil fails. If it is not always severe jitter, the ignition coil can be basically ruled out.

6.The vehicle is too old, and the mechanical aging leads to poor engine condition, which leads to poor ignition, and the fault light is on. 7.Some of the sensor computer boards themselves are faulty, resulting in the fault lights on.

Specific problems are analyzed, and the reasons that cause the engine failure light of your own vehicle to be on need to be professionally tested, and you must not blindly judge and operate at will.

There are too many possible reasons for the engine failure light to turn on, and they can be roughly divided into the following three categories:

1. False failure. Report the fault**, but the work is normal, it may be that a certain operation is beyond the control of the computer, and the fault of the computer feedback can be eliminated first, and then see if the fault code is still jumped.

2. Minor faults. There is no particularly obvious fault in the engine, according to the computer detection information and further inspection, it is found that there is really some kind of fault, which does not affect normal driving or has little impact, and needs to be found and solved in time. For example, the inlet pressure sensor is faulty, etc.

3. Major failures. Such faults are noticeable to the naked eye and driving sensations, and seriously affect the normal operation of the engine, requiring immediate repair. For example, the engine is obviously underpowered, and it is likely that the oxygen sensor is a problem.

Just because the engine fault light is on doesn't mean the engine won't work. First of all, the fault light is on, it is necessary to detect and repair, if you happen to be near the repair station, you can go to check at any time It is best to check it immediately, if you are far away from the maintenance station, and there is no time to go to the maintenance station to check, as long as you feel that there is no obvious fault in the engine, you can do your thing first.

There are just a few things to note.

1. Don't drive as usual during driving, and it's best to keep driving at a low speed.

2. Always pay attention to whether the oil gauge alarms, if the oil is seriously missing, it is absolutely impossible to drive.

3. Always pay attention to whether the water temperature gauge (antifreeze) alarms, if the water temperature is too high and driving for a long time, the car breaks down.

The engine fault light is on, and it is usually okay to drive at low speeds with caution if there is no particularly noticeable fault. It may be some minor faults, or there may be no faults (false faults), but if there is an obvious fault in the engine, such as serious abnormal noise, serious shaking, engine smoke, etc., you must not drive on the road, and it is best to contact the repair shop to wait for rescue.

The reason why the engine failure light is on

1. The combustion state is not good.

Poor engine combustion condition 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.

2. The fuel quality is not good.

Many riders who find that the engine fault light is on have a feeling: that is, the engine fault light suddenly turns on after adding a tank of fuel. Because the engine has requirements for the quality index of oil, especially as the requirements for the engine are getting higher and higher in various specifications, the quality index of the oil is also getting higher and higher.

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

After a certain period of use, there must be some carbon deposits inside the engine, which itself will lead to changes in the design parameters of the engine, and at the same time, its properties are unstable and heat is accumulated, and these accumulated heat will lead to disorderly ignition of the engine, thereby causing engine detonation. In this case, the engine fault light is also illuminated.

The hazard of an engine failure light on

After the engine fault light is on, there are always some abnormal states, if not solved in time, it is usually accompanied by the following problems:

1. The quality of automobile exhaust gas deteriorates and pollutes the environment;

2. The fuel consumption of automobiles increases, and oil resources and RMB resources are wasted.

There are many cases where the engine oxygen sensor is abnormal and causes the engine fault light to alarm. The engine oxygen sensor is generally placed near the intake manifold, due to intense driving or some collisions, the oxygen sensor will be displaced or damaged, which will cause the sensor to be abnormal and cause a fault light alarm.

Plugged injectors and carbon build-up in the intake valves can also trigger engine failure light alarms. Because there will be impurities in gasoline, they will accumulate at the fuel injector, which will affect the fuel injection of the fuel injector, especially in the cylinder direct injection engine, which will directly lead to engine shutdown and other conditions.

There are several main reasons why the engine fault light is on:

1. Excessive carbon deposition inside the engine leads to poor gasoline atomization, damage to the oxygen sensor or insufficient gas combustion in the combustion chamber. There is damage to the starting spark plug, resulting in a lack of cylinder power in the vehicle.

2. The exhaust system components of the car, such as the oxygen sensor and the three-way catalytic converter, are damaged, which will lead to the failure of the vehicle exhaust standard. If the water temperature and oil temperature are too high, you need to pull over and turn off the fire and wait for cooling.

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 engine is applied to both the power generation unit and the entire machine including the power unit (e.g., gasoline engine, aero engine). The engine was first born in England, so the concept of the engine also originated from the English language, and its original meaning refers to the "mechanical device that produces power".

The reasons for the engine fault sign to light up are: 1. Poor gasoline quality will lead to insufficient combustion of the mixture in the cylinder; 2. Carbon deposition in the inlet duct and piston will lead to poor atomization and insufficient combustion; 3. The spark plug is not changed for a long time, and the working characteristics are weakened; 4. Failure of the car sensor.

You can use the car computer tester to detect the engine system, clear the fault code, if the fault indicator is off, it means that there is no problem. If the fault indicator is still on, the fault code will be read, and then the fault will be repaired and dealt with according to the detected fault content.

There are two scenarios when the engine fault light is on:

1) Yellow symbol light, indicating that the engine is faulty, but the fault does not affect the normal operation of the engine, but it must be maintained;

2) Red symbol light, indicating that the engine has a serious fault, under normal circumstances, it needs to be repaired immediately, if it is in special road conditions, it can be used in an emergency, but you need to pay attention to the working status of the engine at all times; But as a reminder, EFI engines have self-protecting control systems, which won't let you ignore the life or death of the engine.

What does it mean when the engine fault light is on?

In today's cars, the engine is controlled by a computer (that is, what we usually call an EFI or electronically controlled engine). In order to maximize the reliability of computer control, the car computer itself has a self-diagnosis function. That is to say, as long as the engine is in working condition, the computer will continue to detect the operation of each system, once it finds that there is an abnormal situation, the computer will do three things:

Clause. 1. Light up the fault lamp and tell the driver that the system is now in a faulty operation state, and it should be checked and repaired in time.

Clause. Second, the detected fault information is stored, which can be provided to the repairman as a reference during maintenance, so as to solve the fault faster.

Clause. 3. In order to ensure that the engine can continue to run in the event of a failure, if the detected fault has little impact on the normal operation of the engine, the computer will directly ignore it. But in fact, the engine is not working at its best at this time.

If a more serious fault is detected, the computer will start the emergency program, and when the engine works under the emergency program, it does not consider whether the fuel consumption will increase? Will the motivation go down? There is only one purpose, which is to ensure that the engine can continue to run without stalling.

The engine fault light is on and you need to be vigilant and you can continue to turn it on.

Many people are afraid that there will be a big problem with the vehicle when they see that the engine light is on. In fact, the full name of this light is called the engine exhaust emission detection light, which is concerned about exhaust emissions, if this light is on, it means that there is a problem with vehicle emissions.

The first step to see the light on is to go to the 4S store to detect whether there is a problem with the sensor itself. Because if the wheel god sensor is broken, it will conduct an error signal, and it will also cause a fault light alarm. If that's the reason, just change the sensor, it's not a big problem.

If the sensor is confirmed to be normal, then most of the causes of exhaust emission problems come from carbon deposits, and the carbon deposits of vehicles are still relatively serious. Don't think about saving money at this time, sending the car for cleaning is also a kind of protection for the vehicle.

The engine fault light was on, the energy was not good, the owner spent more than 1,000 yuan to fix it, and the old driver spent 50 yuan to repair it. Now many maintenance workers can't call ** to the maintenance workers, but can only call the maintenance workers of the 4S shop. After some decoding, they told Mr. Xu that the engine fault indicator was on and there was a problem with the exhaust emissions.

It was preliminarily judged that there was a problem with the three-effect catalyst and needed to be replaced, and suddenly the yellow light at the engine outline lit up.

Anyone who knows the car knows that it's an engine fault indicator. For example, an unbalanced air/fuel ratio can cause a fault light to illuminate. The engine fault light is yellow, indicating engine failure.

Please check your car. If the car shakes and starts after the Flemish, it won't start, the vehicle can't move, the electronic parking button can't be installed, and the dashboard fault light is on, it means that the vehicle may have a fault that needs to be checked.

If the fault light is yellow, it means that the vehicle can still be driven temporarily, but it must be repaired at the nearest service point as soon as possible. But if the fault light is red, the fault light should be on when the vehicle is running normally, and then I drove to the 4S store and found that the fault light on the dashboard was on. I don't know much about this car.

After arriving at Fang's house, I sent a chat to my relatives**, and he told me the cause of the engine failure. When I got home last night, I went to the store to check it out.

The 4S shop directly suggested that we replace it, but the most direct fault of replacing the ** very three-way catalytic converter is the yellow engine fault light in the vehicle instrument. This will cause the engine failure light to illuminate. 2。

Poor engine maintenance is the most common cause of engine failure. There are two yellow symbol lights when the engine fault indicator lights up, but the fault does not affect the normal operation of the engine, and the mas must be detected and repaired, definitely caso, so that the engine fault indicator lights up "Hongfu" He replaced the three-effect catalyst, but this part is a bit expensive.

If the maintenance fee is too expensive, you can check how to repair it, you can also check whether the engine is faulty, you can also check whether the spark plug is firm, you can also check whether the engine interface is loose, and you can also check whether the line is faulty and aging.

If the repair fee is very expensive, then we can go to the insurance company, because the insurance company can help us solve these problems, and will also compensate us, so I think there are many people who will do this.

If the maintenance cost is too expensive, you can repair it yourself and buy some parts to install it yourself, so that you can save labor costs and it will be cheaper.

In the process of driving the car, or the moment the car is ignited, the car engine fault light on the dashboard, generally a red or yellow light, once lit, will not automatically disappear in most cases, and will disappear automatically in a few cases, and will be lit for a while or a few days, and then extinguished. The first two cases should be inspected for the vehicle, the first situation is not very urgent, you can continue to use the car, take the time to do an inspection, but it is best not to delay too long. Those who don't pay much attention to instrument driving, the first situation is often not noticed, and it may not be visible for many days, so as long as it is found.

Hurry up and check it out as well. It is necessary to check immediately, because there is a fault phenomenon, and the fault light is also on, indicating that there must be a problem with the car, and not checking and repairing it in time may cause a greater failure. Damage to very important parts of the engine or sensors, generally not important sensors or components.

It does not affect the operation of the vehicle, such as the engine accident, but when the engine accident fails, the engine control unit records the phenomenon, so the fault code is stored, but the vehicle is accidental, so the fault is not obvious, so it does not affect the operation of the vehicle.

The engine is not in ideal working condition. If a serious fault is detected, the computer will initiate an emergency procedure, and the engine can work under the emergency procedure, but generally only to ensure that the engine can continue to run. Generally, when the engine fault light is on, the engine computer must have detected the abnormal phenomenon of the engine, so if it is to be repaired, it must be repaired according to the relevant fault**.

When the on-board computer detects which part of the vehicle is faulty, it will light up the corresponding fault light on the dashboard to alert the owner.