What s going on with the engine fault light of Wuling car all the time?

Car engine failure light on the reason:

When the computer receives the parameters of the oxygen sensor after the exhaust emissions seriously exceed the national legal standards, the internal program of the computer can not be corrected to the standard range, at this time, the engine control computer will send a warning light (yellow pollution light on) through the instrument to remind the owner to the maintenance station to check the cause of the engine pollution emission lamp.

Causes of polluting lights on:

1.Poor quality of gasoline will cause the mixture to burn inadequately in the cylinder, resulting in polluting lights, and it is also prone to carbon deposits.

2.The presence of carbon deposits in the inlet duct and piston tip will lead to poor atomization, which will lead to insufficient combustion and the pollution lamp 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 pollution light will be on when it is started, but as long as the temperature drops to a certain level, it will be relatively stable after the temperature does not fluctuate.

4.If the engine mileage is too long, the spark plug operating characteristics will be weakened, and the polluting lamp will be lit.

5.Excessive carbon deposition and difficult ignition will lead to the reverse breakdown of the ignition coil, resulting in ignition coil failure, resulting in poor ignition, resulting in incomplete combustion, resulting in the pollution lamp on, this phenomenon has a distinctive feature is that when the ignition coil fails, the engine is always serious shaking. If it is not always severe jitter, the ignition coil can be basically ruled out.

6.The age of the vehicle is too old, and the aging of machinery leads to poor engine working conditions, resulting in poor ignition, resulting in pollution lights.

7.Some of the sensor computer boards themselves malfunctioned, causing the pollution lights to turn on.

When the pollution light is on, the engine action does not shake or shakes slightly, at this time, the owner does not need to worry when using it, it can be used normally, and it can be checked or maintained when there is time or convenience.

1. First of all, although the fault light is on, but the car does not have a big problem, and can continue to drive, then, it is necessary to consider whether the sensor is faulty, at this time do not have to worry too much, it will automatically recover, or because of the interference of some external conditions, in fact, it should not affect the vehicle driving, but may have a certain impact on emissions. In this case, you can continue to drive for the time being, be very careful during the drive, and have time to go to the factory for testing.

2. If the fault light is on, there is a problem with a certain part of the car, or the car is difficult to drive, then it cannot continue to drive at this time, and it is called a rescue trailer. Because the car has a breakdown and there is a serious problem, continuing to drive will aggravate the problem, or the resulting problems will gradually accumulate and develop other problems, so it is not recommended to continue driving.

3. Take care of the car, if the engine fails, you should do it in time, don't wait for the problem to deteriorate, and don't take the risk of driving a faulty car.

The reasons for the failure light may be the air flow agent (or inlet pressure sensor), ignition inner coil, crankshaft position sensing vessel, idle motor, oxygen sensor, etc. You go to the 4S store and ask the master directly to use the computer to detect the fault code;

The fault code shows which component problem will be replaced directly, and the fault code will be cleared after the replacement, and please use 97 gasoline (because the composition of 93 gasoline has been changed now, and sometimes it will cause the phenomenon that the first few times it cannot be hit).

Causing a malfunction lamp copy.

The reason for the brightness may be the air attack flux agent (or inlet pressure sensor), ignition coil, crankshaft position sensor, idle motor, oxygen sensor, etc. You go to the 4S shop and ask the master directly to use the computer to detect the fault code, and the fault code shows which component is problematic to replace it directly, and clear the fault code after the replacement, and please use 97 gasoline (because the composition of 93 gasoline has changed now, sometimes it will cause the phenomenon that the first few times it cannot be hit).

Sometimes it's on, sometimes it's not? It's still lit up all the time, and when you go to the repair shop to check it with a decoder, it shouldn't be a big problem.

Decoding is a crankshaft position sensor, isn't it? Let the after-sales one refresh the computer version for you!

There are many of the best reasons why the fault light is always on.

Or go to the service station and let the staff check with professional instruments.

There are many reasons for this, and it is recommended to try it with a decoder.

Wuling Light suddenly failed today, what happened to the light on.

Reasons for reference only: 1. The sensor is damaged, the contact is poor, or the signal is interrupted; 2. Poor engine maintenance; 3. The quality of fuel and oil is not good; 4. The combustion of the mixture is insufficient; 5. Spark plug failure, ignition coil failure; 6. The fuel pump is faulty and the oil circuit is blocked; 7. The air conditioner filter is blocked.

The specific situation is analyzed as follows; 1. Sensor problems; The sensors mentioned here include water temperature, crankshaft position, air flow, intake air temperature, oxygen sensor, etc., when these sensors are damaged, the contact is not good or the signal is interrupted, the ECU of the car can not accurately obtain the engine data, and the engine fault light will be on. 2. Maintenance problems; Poor engine maintenance is the most common cause of engine failure to light up. We know that the vehicle has a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light to care about your car 3, oil quality problems; The oil quality here includes fuel and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame.

Poor combustion of the mixture; The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by the problem of engine carbon deposition or knocking, and these will eventually be detected by the engine's oxygen sensor and reported to the ECU, which will naturally turn on the fault light to warn of the intake air intake problem; If the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and it will also cause the engine failure lamp to be lit. The most common of these is turbocharger damage, and at the same time, the vehicle will also have oil leakage, large oil consumption, and power loss.

1. Sensor failure; 2. The quality of gasoline is not up to standard; 3. The air leakage of the inlet pipe leads to the mixture being too thin; 4. The fuel pressure is low, and the injector and fuel filter are blocked; 5. The signal of the pressure sensor and the throttle position sensor is abnormal; 6. The ignition timing is inaccurate and the ignition is too late. 7. Weak high-voltage sparks due to poor spark plugs, igniters or high-voltage wires; 8. The throttle is dirty; 9. The exhaust gas recirculation system works poorly; 10. The exhaust pipe is blocked; 11. The cylinder pressure is low; 12. Turbocharging system failure 13. Clutch three-piece set14 Air filter blockage, piston ring broken or stuck, poor valve sealing, late ignition, carburetor mechanical failure, air intake pipe leakage, individual cylinders do not work well or do not work, etc. However, some of the faults of insufficient engine power can be solved by use. Such as:

General wear of the cylinder, poor flow of the carburetor oil passage, etc. When the user reflects that the engine power is insufficient, burning oil, we should first judge the cause of insufficient power, in the exclusion of the air filter ruler sensitive blockage, carburetor throttle can not be fully opened, ignition timing is not good, the intake pipeline gasket is damaged, individual cylinders do not work or work badly and other reasons, and then according to the engine fuel consumption is too high to judge the carburetor working situation, if the fuel consumption is too high, the exhaust black smoke is very thick, it is likely that there is a mechanical failure such as the amount hole falling off, This failure must be repaired as necessary, and the wear and tear of the machine directly affects the tightness of the cylinder; Therefore, checking the tightness of the cylinder can largely reflect the degree of wear of the cylinder, and the most convenient way to check the tightness of the cylinder is to use the cylinder pressure gauge to check the compression pressure of the cylinder.

2. Sensor problem, when the sensor is damaged, it will cause the engine fault light to turn on. If the sensor is damaged, the manufacturer should be notified for repair.

3. Carbon deposition in the spark plug, too much carbon deposition will cause the ignition coil to reverse breakdown, which will then lead to the failure of the ignition coil, and the fault light will also light up at this time. Spark plug carbon depositsYou can use some carbon deposition cleaning products, remove the spark plugs, and clean them with cleaning products. If the spark plug has serious carbon deposit, it can be replaced directly.

4. Maintenance problems, poor engine maintenance is the most common cause of engine failure. It is advisable to maintain the car regularly.

5. Poor combustion of the mixture, failure of the spark plug of the engine, failure of the ignition coil, failure of the fuel pump, blockage of the oil circuit, etc. will cause the poor combustion of the engine mixture. Poor combustion of the mixture causes carbon deposits or knocking problems in the engine, which will eventually be detected by the engine's oxygen sensor and reported to the ECU, which will naturally turn on the fault light to warn. It is recommended to find a professional to repair it.

6. Air intake problem, when the engine burns, it needs to be intake, the air filter is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine fault light to turn on. It is recommended to go to a professional repair shop for professional repair.

7. Booster problems: Intake booster pipelines and turbochargers will also cause the engine fault lights to light up. It is recommended to find a professional to repair it.

8. Exhaust problems: rear oxygen sensor, three-way catalytic converter, exhaust camshaft and bearing. The most common of the jokes is the failure of the three-way catalytic converter, which causes the engine to malfunction and the light is lit. It is recommended to go to the 4S shop for professional maintenance.

9. Anti-theft system: If the automotive electronic anti-theft system fails, or the anti-theft controller does not match the engine electronic controller, the anti-theft system will also cause the engine to fail to work normally, and the engine fault light will be lit at the same time. It is recommended to go to a professional repair shop for professional repair.

10. If there is a linkage failure caused by a problem in the gearbox system or brake system, then this kind of liquid liter number barrier will generally be accompanied by the dashboard, and there will be other fault reminders, and if the brake system is used, go to the maintenance shop to focus on checking the ABS pump and wheel speed sensor. If it's a gearbox system, you need to use a computer to do some decoding.

Wuling Hongguang engine fault light is a warning for the owner, but there is no need to worry, the reason may be due to the poor combustion state of the engine or the engine detonation. The latter situation is more serious, and maintenance should be carried out at this time.

1. 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.

2. Engine knock The engine has a special knock sensor to monitor the engine knock. Engine knocking already means that there is a risk of serious damage to engine parts or a significant loss of power. In the case of non-inductive detonation, the engine computer will adjust the engine control parameters according to the monitored situation to avoid greater adverse effects, but when the non-inductive detonation has exceeded the range that the engine computer can adjust, the engine fault light will also light up the alarm.

The reasons for the failure of the engine lamp of the Wuling Buqing car are as follows:1. Exhaust emissions are not up to standard

Such as poor fuel, three-way catalytic converter failure, excessive carbon deposition in the intake pipe, fuel injector blockage, oxygen sensor failure, occasional engine stalling, etc. , all of which can lead to engine failure lights, where poor oil quality will cause the engine spine machine failure lights to be lit most frequently. 2.

Faulty lamps caused by poor operation of the engine system, such as oil i] pedal sensor, valve position sensor, air gas flow meter, crankshaft position sensor, etc. , or poor line contact, etc. , will cause the engine failure light to illuminate.

3.Some vehicle transmission system failures are also indicated by engine fault lights, such as internal transmission faults, skidding, excessive temperatures, etc.

Inspect engines and ABS, repair damaged electrical components. Engine failure light turns on and off Reason:

1. The instrument prompts that the gearbox is abnormal or the fault light is on, which is generally the alarm when the gearbox fails, and the fault can be determined by computer detection;

2. It may be that the electronic components of the gearbox are faulty, and the solution is: use a computer to detect and replace the damaged electronic components;

3. If the mechanical components of the gearbox are seriously worn, the solution: repair the damaged mechanical components;

4. There is an engine or ABS failure that sends an wrong signal and interferes with the gearbox, solution: detect the engine and ABS, and repair the damaged electrical components.

If the fuel quality is not good, it may also lead to insufficient combustion during driving, and the engine fault light will jump out, but it will not last too long, and if you turn it on again, it will naturally go out. In this case, we don't have to worry, it is very likely that low-quality gasoline has been added. However, before the gasoline enters the combustion chamber, there is a gasoline bureau filter filter, which will not cause any damage to the engine, so there is no need to pump out the inferior gasoline, and after burning, it can be replaced at a regular gas station.

In addition, some old cars have more carbon deposits, and it is easy to cause the engine failure light to turn on, because the carbon deposit itself has adsorption, and when it just starts on fire, if the engine failure light lasts for dozens of seconds, and then extinguishes it is caused by carbon deposits. Because just before starting the dust car, part of the fuel sprayed will be adsorbed by carbon deposits, and the fuel concentration entering the cylinder is low, which will cause the lights to turn on.

Finally, after slamming on the accelerator, the engine fault light came on, but after a while, it went off. This situation is because the air intake is not smooth, it may be that the air filter is too dirty and the air filter needs to be replaced.