Can the car s engine failure light continue to drive when it is on? Everything else works fine

The engine fault light is on, but when the car is driven, as long as there are no symptoms such as shaking, frustration, and black smoke from the exhaust pipe, you don't have to worry, you can drive it with confidence, mainly because of poor combustion, false failure caused by poor contact with the oxygen sensor, pull the engine at high speed, clear the oil circuit, and after changing the fuel, it will return to normal after a period of time. On the contrary, it is necessary to use a computer to read the fault code for symptoms.

Hello car owners! Some of the fault codes in the car are temporary and can be cleared with a decoder, but some are different, and they still need to be detected to draw conclusions. In order to ensure the safety of the vehicle, it is best to go to a regular maintenance store to check it with a decoder.

Have a nice ride!

It's okay to keep the engine fault light on.

There are many reasons why the car engine failure light is on, the car engine is the main power unit of the car, which converts the energy generated by the fuel into the kinetic energy that drives the car, and most of the reasons for the engine failure are affected by the exhaust of the car.

For the sake of our safety, it is not recommended to drive the car no matter where it breaks down, but it is inconvenient to park when driving or on the road, and when the car has a small problem, we can drive the car to the nearest 4S shop or auto repair department to overhaul the car.

1. Identify the cause of the failure. For diagnostics of such faults in which the engine does not start, the battery should be tested first. It is necessary to find out if the engine does not start because the battery is insufficient.

2. Detect ignition timing. Timing belt slippage is the root cause of the failure that there is no electric spark and the engine cannot start.

3. Detect the starting system. In the case of faults such as engine failure to start, the first thing to do is to check the circuitry in the engine starting system. From the perspective of the most basic composition, the circuit of the starting system generally includes the following basic parts, that is, the battery, the starting motor and the cable connecting these parts.

Of course, in addition to this, ignition switches, starter relays or solenoid coils, as well as in-vehicle anti-theft systems, are also important components of the starting system.

4. Detect the quality of electric sparks. Once the circuitry of the starting system has been tested and proven to be fine-tuned, attention should be focused on why the engine is not working. Generally speaking, the ignition system of the engine is tested first, which is also the easiest inspection job.

In early ignition systems, you could easily remove the ignition coil and use a spark detector to detect if the spark was normal. When choosing a spark detector, an adjustable detector is preferable to a fixed design because it allows you to adjust the detector to a smaller gap so you can tell if there is no spark at all, or if there is an electric spark but it is weak.

5. Detect the fuel system. The diagnosis of the fuel system can be divided into two parts: the diagnosis of the fuel supply system and the diagnosis of the injector circuit system.

The fuel supply system can be detected by measuring the flow and pressure of the fuel. The best way to measure fuel flow is to inspect the line when there is a load in the fuel supply line.

If there is an engine fault light during driving, there is no abnormal noise in the cabin, there is no other abnormal prompt in the instrument, the vehicle power is not affected, and the transmission upshift is not affected to continue driving, but it is best to get out of the car after driving to a safe area to check the reason for the engine failure sign to turn on, because the intake and exhaust may cause the engine fault light to be on.

If the engine fault light is on, it may be that the fuel pump is not pumping oil, and in this case, the car will not start. It is also possible that the oxygen sensor is faulty, and the car can still drive normally when getting off in this case, but it will cause the control of the air-fuel ratio of the engine to deviate, which is more fuel-efficient than before.

Yes, but it depends. There are two situations when the engine yellow light on the car dashboard is on, one is when the car power is turned on, the vehicle will carry out 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 other 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 the user that the engine is faulty.

This is usually accompanied by the following problems:

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

2. Increased fuel consumption of automobiles, waste of petroleum resources and RMB resources;

3. The temperature of the combustion chamber increases and the wear intensifies, which may lead to early damage to the engine;

4. The engine burns engine oil;

5. The engine noise increases, affecting the comfort of driving and riding.

Answer: Hello, 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.

Question: Will the engine fault indicator light be on in the third gear of climbing? What is the reason?

Answer: If the engine light is on when driving uphill, it may be that the vehicle is currently in the drag mode, that is, the speed of the car is relatively low, and the gear is relatively high, if your car is an automatic transmission, you need to repeatedly press the accelerator, and then lift the accelerator to slow down, or increase the accelerator to increase the engine speed. If your car is in manual transmission, you just need to lower the gear or increase the throttle, increase the engine speed, the engine light, and it won't be on again.

Qingge Solving the Car No. 17: The car can still be driven if the engine failure light is on, but if these three lights are on, it must not be opened.

The fault light of the engine is on, if the oil and antifreeze are not missing, and. The acceleration performance of the engine is also normal, the sound of the engine is also normal, and there is no change before, then in this case it may be that the engine burns badly, or a sensor is not working properly, in this case, the vehicle can still be driven, but do not run for a long time in time. Go to the repair shop in time and use the computer to detect and repair it.

There are several reasons why the fault light is on, and some of them are not in the way of the car.

1. The engine fault light is on, it may be that the fuel pump is not pumping oil, and the car cannot be started, and it cannot be driven directly.

2. If the oxygen sensor fails, the car can still drive normally when getting off in this case, but it will lead to a deviation in the control of the engine's air-fuel ratio, which is more fuel-efficient than before.

3. False fault, ECU will warn (fault light) for some improper operation, in fact, there is no problem with the car.

Fault lamp analysis:

During the driving of the car, or the moment the car is ignited, the car engine fault light on the dashboard lights up, usually a red or yellow light, once it is on, it will not disappear automatically in most cases, and will disappear automatically in a few cases, which is the so-called engine fault light on.

The engine fault signal is sent by the ECU engine computer, and the ECU controls all the electronic equipment of the entire engine, such as electronic throttle, fuel injector, generator, fuel pump, etc., covering various systems such as air intake, exhaust, fuel, ignition, timing, etc.

Reasons why the engine failure light is on:

1. The combustion state is not good;

2. Engine knocking;

3. The fuel quality is not good;

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

5. The computer cannot obtain the engine data.

We often encounter some car engine fault lights on, at this time many drivers will think that the car has a big problem, in fact, there is no need to worry, today we will explain the main causes and solutions of this fault light. Engine fault light, is it serious that the engine fault light is on.

There are many cases of engine failure lights on, and the problems can be big or small, such as bad oil, volleyball exceeding the standard or something, which basically does not affect driving, and serious continued driving may cause the engine to be scrapped.

There are many reasons why the fault light is on, and it can still be opened, so you can find the nearest repair shop to see what the problem is with the car and consult the master.

Generally, the engine fault light is on, and usually if there is no particularly obvious fault, it is still okay to drive at low speed with caution. However, 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 possible causes of the engine failure light 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.

If the engine fault light is on and cannot continue to open, how to deal with it:

1. The vehicle fault light is generally caused by the fuel emission system, you start and extinguish the vehicle when the fault light is on, and after starting and extinguishing the vehicle three times, you observe whether the fault light is still lit when starting the vehicle, and if it is still lit, you need to go to the store in time to check the fault code to see whether it is an engine problem or a sensor failure, or it may be an occasional failure, and you don't need to go to the store in time to check;

2. When the computer receives the parameters of the oxygen sensor, the exhaust emissions seriously exceed the national legal standards, and the internal program of the computer cannot be corrected to the standard range, at this time, the engine control computer will send a warning light of excessive pollution emissions through the instrument, and the yellow pollution light is on, which is used to remind the owner to go to the maintenance station to check the cause of the engine pollution emission light;

3. It is recommended that you go to a professional 4S store for inspection and maintenance, and professional technology with top testing equipment should be able to help you.

Answer hello, not all engine fault lights can not be turned on, if the engine fault lights are on, there is no abnormal noise in the cabin, there are no other abnormal prompts in the instrument, the vehicle power is not affected, and the gearbox upshift is not affected, you can continue to drive and stop the 4S shop for further investigation, because the intake and exhaust may cause the engine failure light to be on, and the specific problem is analyzed specifically.

This is commonly referred to as the yellow engine fault lamp, also known as the EFI system fault lamp. As long as there are no special abnormalities in the engine power and sound, it can still continue to drive. Because there is a substitute bug program in the ECU.

Once one of the many sensors has a sensing failure, in order to ensure the normal operation of the engine, the ECU will replace the parameters of the faulty sensor according to the pre-set backup parameters to avoid vehicle breakdown. For example, if the water temperature sensor is broken, the ECU will use a backup value of 80 degrees as the control parameter for fuel injection and ignition. So it can be opened, but it must also be repaired in time.

Three-way catalytic converter failure, fuel injector blockage, etc. may also cause engine failure problems The lamp is always on, and the key reason for these fault problems is related to oil quality, in addition to whether the gasoline is burned sufficiently. If the engine failure problem lamp is always on after the car starts, it is necessary to pay attention to the water temperature, engine oil pressure and engine idle speed, etc., whether the phenomenon is normal.

Once the engine fault light is on, first check whether the engine is running normally, whether there is shaking, black smoke or difficult to start, try not to start again, there is a high probability that there is a problem with the engine.

1. When the yellow symbol is bright, it can be turned on but needs to be maintained, and it cannot be turned on when the red light is on, and it must be overhauled immediately.

Second, there are two situations 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.

Common sense of engine maintenance

1.In the process of driving the vehicle, pay attention to the relevant instructions on the instrument, and always observe the prompts of the water temperature meter, oil lamp, and charging indicator light. If any undesirable phenomena are found, they will be dealt with immediately.

2.Use fuel that complies with regulations. The quality of the fuel has a great impact on the combustion of the engine, and the inferior gasoline will cause a large amount of carbon deposits and gels in the combustion chamber, injector, air intake tract and valve, etc., so that the engine will be sluggish, unstable, difficult to accelerate, etc.

3.Start the engine in a quiet state to idle and accelerate the engine, and listen to the sound of the engine to see if it is normal. The normal engine operation sound should be relatively low and regular, if there is a more sharp sound, please go to the repair shop immediately for diagnosis, in order to avoid greater damage caused by the failure.