What is the reason for the failure light of the car s engine?

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. The suggestion is to clean up the carbon deposits in the throttle and intake tract, and then clean the carbon deposits in the combustion chamber.

Second, the fault light is lit due to the damage of the sensor related to the vehicle engine system, then most of this fault is the problem of the oxygen sensor or the intake and exhaust camshaft adjustment solenoid valve, go to the repair shop or the 4S shop to use the computer to do the corresponding decoding, according to the relevant fault ** judgment, which sensor has a problem? Replacing the sensor with a brand new one and clearing the fault code will solve the problem

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. If it is a gearbox system, this is a computer to do some decoding to see if it is caused by the relevant gear switch or the failure of the solenoid valve body inside the gearbox?

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.

308 Although there are many reasons for the lights, due to the age of squeezing engine power, the use of low-grade gasoline for the large compression ratio, I feel that the quality of gasoline is poor or the reason for the use of low grades is too large, it is recommended that large traffic gas stations fill up high-grade gasoline, and the car does not shake under the premise of running at high speed for a few minutes, and it should be restored within 2 days. No, check for other reasons. The rider question is mine.

Fuel quality problems: Poor fuel quality is not up to standard. Some car owners have just finished filling up, and the engine failure light on the dashboard is on, which is caused by poor quality oil at an irregular gas station.

This condition does not affect the driving of the vehicle, but it can cause damage to the engine. It is recommended to replace the *** fuel with early ear burning.

Carbon deposits in engines and spark plugs: After the engine is used for a period of time, some carbon deposits will accumulate, which will lead to engine damage, difficulty in starting, poor acceleration family difference, and excessive engine noise. The accumulated heat can cause the engine to ignite disorderly, which can cause engine knocking.

In this case, the engine fault light will be on, and the carbon deposits of the engine should be cleaned regularly.

The reasons are for reference only: 1. The seepage shed 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, poor contact or signal interruption, the ECU of the car can not accurately obtain the engine data, at this time it will cause the engine fault light to turn 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 generally 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 detonation, and these will eventually be monitored by the engine's oxygen sensor, and after reporting to the ECU, it will naturally light up the mold and shout the fault light to warn of the air intake problem; When the engine burns inside, it needs to be intake, the air filter element 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 failure light to turn on. pressurization issues; Intake booster lines and turbochargers can also cause engine failure lights to illuminate.

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.

After the engine fault light is on, it can be divided into the following three situations: 1. The car cannot be started, which may be caused by the failure of the fuel pump or ignition parts. 2. The fault light is on, but there is no abnormality in driving, this may just be a sensor failure, this situation can continue to drive temporarily, but it is best to slow down at low and medium speeds, and go to the repair shop.

3. The engine fault light is on, and the vehicle can be driven, but there are symptoms such as severe shaking and acceleration weakness, and it is recommended to stop and call for rescue in the face of this situation.

There are too many possible reasons for the engine failure light, which 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.

When the sensor is damaged, the contact is poor, or the signal is interrupted, the engine fault indicator lights up. Improper engine maintenance is the most common cause of engine failure. Therefore, it is advisable to maintain the vehicle on time and maintain good driving habits, otherwise it will increase the burden on the operation of the engine.

Poor quality fuel and oil can also lead to engine failure. If the oil is not added as required, the engine will wear out for a long time, which will cause the engine fault indicator to illuminate. Typically, manufacturers will recommend which grade of fuel and which type of oil to use.

Due to engine spark plug failure, ignition coil failure, fuel pump failure, oil blockage and other problems, the mixture burns poorly, causing the engine fault light to light up. When the engine mixture is not completely burned and the mixture in the cylinder is too thick, the vehicle will have symptoms such as knocking and shaking. It's too thin, and the car can't accelerate.

In addition, it is necessary to clean the empty filter element of the car regularly, otherwise it will affect the air intake of the car. It may be blocked for a long time. In severe cases, the engine fault indicator will illuminate.

There are many reasons that can affect engine failure lights, but if there is the most common cause, it is a faulty sensor around the engine. After the engine fault light is on, it is necessary to use a professional diagnostic computer to read the fault**, so that the cause and location of the fault can be quickly determined. A vehicle is not a simple machine, it has many sensors and electronic components.

Without these sensors, the vehicle would not be able to function properly. There are a lot of sensors around the vehicle, such as knock sensor, water temperature sensor, camshaft position sensor, crankshaft position sensor, oil pressure sensor, air temperature sensor, air flow sensor, etc. There is an ECU on the engine, which is equivalent to the brain of the engine.

The ECU can collect information from a variety of sensors, and after processing, the ECU can adjust the operation of the engine through the actuator. If the sensor is damaged, the ECU cannot receive certain information. At this point, there will be problems with the rotation of the engine, affecting the engine failure problem light on the vehicle's dashboard.

Sensors and electronic components work in a harsh environment, and it is quite normal for them to malfunction over a long period of time. Electronic components are not as reliable and durable as mechanical components. If something goes wrong, just replace it and solve the problem.

When replacing these parts, it is advisable to use genuine parts. Today, Bian Xiao will introduce you to the reasons why the car engine failure light lights up, so that you can understand all the above information. Finally, I hope it will help you in the daily use of your car.

The reasons why the car engine failure light is on are as follows:1. Damaged sensors, poor contact, or signal interruptions cause the engine failure light to illuminate.

2.Poor engine maintenance leads to engine light failure. 3.

Poor fuel and oil quality cause the engine to work abnormally, which in turn causes the engine fault light to illuminate. 4.Engine spark plug failure, ignition coil failure, combustion.

The car engine fault light is on, what is the reason The reasons why the car engine fault light is on are as follows:1. Damaged sensors, poor contact, or signal interruptions cause the engine failure light to illuminate.

2.Poor engine maintenance leads to engine light failure. 3.

Poor fuel and oil quality cause the engine to work abnormally, which in turn causes the engine fault light to illuminate. 4.Engine spark plug failure, ignition coil failure, fuel pump failure, oil circuit blockage, etc.

The reasons why the car engine failure light is on are as follows:1. When the sensor is damaged, the contact is poor, or the signal is interrupted, the engine fault light will illuminate.

2.Poor engine maintenance is the most common cause of engine failure to light up. Therefore, it is recommended that you maintain the car on time and maintain good driving habits, otherwise it will increase the burden on the engine.

3.Fuel and oil quality is not good. If it is not added as required, it will cause the engine to wear out for a long time, causing the engine failure light to illuminate.

What kind of fuel and engine oil do manufacturers recommend? 4.Poor combustion of the mixture is caused by problems such as engine spark plug failure, ignition coil failure, fuel pump failure, oil circuit blockage, etc.

Then the engine fault light came on. When the combustion of the mixture in the engine is insufficient and the mixture in the cylinder is too thick, the vehicle will detonation and shake. When it is too thin, the vehicle will not be able to accelerate.

5.Clean your car's air filter regularly, otherwise it will affect the car's air intake, which may cause blockages in the long term, and even if it is severe, it will cause the engine failure light to come on. How long does it take to start the car, and how long does it take to start the car, but after fifteen days.

1. If the vehicle is left for too long, the vehicle battery will lose power, the vehicle will not be able to start, the tire will be deformed, the vehicle will rust, and the oil will be oxidized. 2. Every time you start the vehicle, you should drive a safe distance after moving the vehicle for more than half an hour.

When the car does not start for a long time, most of the grease stuck to the lubricated parts will flow back to the bottom of the oil under the action of its own weight, which will reduce the lubrication effect of each moving position. Moreover, when the battery cannot get electric energy for a long time, the battery pole piece will be increased in the thinning process, which will increase the internal resistance of the battery and shorten the service life of the battery.

Therefore, it is generally recommended to start the car once a week and then idle it for a few minutes. After the car started, the generator worked. Start charging the battery.

Once the star is activated, basically the battery will not have any problems due to power consumption. If you go out for more than a month, it is best to break the negative electrode of your car battery. Then the battery will be dead.

Wait until you come back from outside, and then put the negative electrode back home.

The engine failure light of the car is on, what is the reason How long does it take for the car to start @2019