The yellow light of the Chevrolet engine is on, what a failure

The decoder needs to see what the fault is.

Chevrolet Sail.

Displacement, checked and said that there is a little problem with ECV.

It is not possible to judge the problem only by saying that the fault light is on, and it is recommended to go to the repair shop to test it.

It is recommended to find a repair shop for inspection.

Hello, you need to go to the repair shop to check it, and check it on the computer.

Hello, what car is Chevrolet?

The reason why the motor 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 must be some carbon deposits inside the engine after a certain period of use, which will cause the engine design parameters to change, and its properties are unstable and heat is accumulated, and the 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 engine fault light is on the solution.

1. Clean the engine.

Once the engine failure light is on, the owner should clean the engine in time, and there are currently two correct cleaning methods:

1) Go to the repair shop to clean the carbon deposits with a special cleaning agent.

2) Clean the entire fuel system with good fuel additives, including removing carbon deposits in the cylinder.

2. Add higher grade gasoline.

After the engine cleaning, because the compression ratio of the current automobile engine that meets the national IV emission standard is generally above, this kind of car is not suitable for long-term gasoline below 95. In order to keep the engine in good working condition, the owner can choose to add 95 or 97 gasoline, which can usually solve the problem of the engine failure light on.

3. Improve fuel quality.

Since the domestic fuel cannot meet the requirements of the current high-efficiency engine for the time being, it is necessary to improve the quality of the fuel by yourself. For example, using good fuel additives to improve the cleanliness level of fuel should be the best way.

Hello answer. The engine fault light is lit, the cause may be that the ignition performance of the engine is problematic or the engine sensor sensing performance exceeds the range, which needs to be detected by the computer fault code to diagnose the specific problem. It is best to go to the 4S shop to test it with a computer, and then repair it.

Explain that the SAIC-GM Chevrolet Sail engine is short of oil, open the hood, add a sufficient amount of transmission oil, the engine fault light is automatically eliminated, and the specific steps of Chevrolet Sail to add oil are as follows

1. Open the door of the SAIC-GM Chevrolet Sail cab.

2. Pull the hood switch on the left side of the SAIC-GM Chevrolet Sail driver's leg.

3. Lift the hood of the engine of the SAIC-GM Chevrolet Sail upward.

Fourth, use the support rod to support the hood of the SAIC-GM Chevrolet Sail engine, and ensure that the support is firm to avoid danger during operation.

5. Supplement a sufficient amount of engine oil to the SAIC-GM Chevrolet Sail gearbox, and the oil volume can reach the middle of the upper scale and the lower scale line.

The reasons that cause the engine failure light to come on are as follows:

1. Poor gasoline quality will lead to insufficient combustion of the mixture in the cylinder, resulting in the failure light to be on, and it is easy to produce carbon deposits;

2. The presence of carbon deposits at the top of the piston in the inlet duct will lead to poor atomization, which will cause insufficient combustion and cause the fault light to be on;

3. When the cold car starts, especially when the weather temperature drops sharply, the fault light will be on when it is started due to the temperature correction problem of the computer, but as long as the temperature drops to a certain temperature and does not fluctuate, it will be relatively stable;

4. If the mileage of the engine is too long, the working characteristics of the spark plug will be weakened, and the fault lamp will be lit.

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.

The reasons for the failure of the engine light are the failure of the three-way catalytic converter, the failure of the oxygen sensor, the poor quality of gasoline, the aging of the ignition coil, the serious carbon deposit of the engine, the damage of the air flow sensor, the engine knocking, and the long-term lack of maintenance of the car.

As the only component to monitor the air-fuel ratio, if there is a failure, the engine computer will not be able to obtain the current normal monitoring data, and the air-fuel ratio cannot be adjusted in real time, which directly manifests as the mixture is too thin or too thick, resulting in the engine fault light on. It may not be the fault of the oxygen sensor itself, or it may be a wiring problem, a loose plug, etc.

The Chevrolet engine fault light is on

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 vehicles have 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 that you should 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.

4. Poor combustion of mixed gas.

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 engine carbon deposition or knocking problems, and these will eventually be detected by the engine's oxygen sensor, and after being reported to the ECU, the fault light will naturally be lit as a warning.

5. Air intake problems.

When the engine burns, it needs to take 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.

A yellow light on the car's engine indicates that the engine is faulty and must be inspected.

The red light indicates that the engine has a serious fault, and 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.

There are many reasons for the failure of the car engine, including the failure of sensors, such as water temperature sensors, crankshaft sensors, oxygen sensors, etc. There are also faulty lights such as spark plug failure, ignition coil failure, fuel pump failure, oil circuit blockage, etc.

There are many reasons for the failure of the car engine, including the failure of sensors, such as water temperature sensors, crankshaft sensors, oxygen sensors, etc. There are also other faults like spark plug failure, ignition coil failure, fuel pump failure, oil circuit blockage, etc.

When the engine fault light is on, it can be divided into three situations, each of which has a different way to deal with it

The first is that the car cannot be started, which may be caused by the failure of the fuel pump or ignition parts, then we directly call ** for help. The second is that the fault light is on, but there is no abnormality in driving, this may just be a sensor failure, in this case, you can continue to drive temporarily, but it is best to slow down at medium and low speeds, and the next destination is of course the repair shop. The third is that the engine fault light is on, and the vehicle can be driven, but there are symptoms such as severe shaking and acceleration weakness, and rescue is called in the face of this situation.

Go to the 4S shop or auto repair shop and ask the maintenance master to use the on-board computer detection system to check what is the reason for the fault light to turn on, and then repair it.

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. Blockage of air conditioner filter 1. Sensor problem; 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 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; When the engine burns, it needs to take 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, while the vehicle can also experience symptoms such as oil leakage, high oil consumption, loss of power, metal noise, and blue or black smoke from the exhaust pipe. 7. Exhaust problems; Rear oxygen sensor, three-way catalytic converter, exhaust camshaft and bearing. The most common of these is a failure of the three-way catalytic converter that causes the engine failure light to illuminate.

The use of leaded gasoline, the use of leaded or silicone lubricant additives, the bump of the three-way catalytic converter, and the failure of the engine oil supply system are some of the factors that can easily cause the failure of the three-way catalytic converter. anti-theft system; If the car's electronic immobilizer fails, or if the immobilizer does not match the engine electronic controller, the immobilizer system will also cause the engine to not work properly and the engine fault light will be lit at the same time.