What are the symptoms of a bad engine board?

There are a lot of symptoms when the engine computer board is broken, which is equivalent to the program that controls the engine is gone, mainly to see how it is broken.

It is possible that the slight point is that the engine fault light is on, and then there is a fire, the vehicle shakes, it is not easy to start, and in a serious case, the vehicle cannot be started, it does not ignite or inject, and the internal program is disordered.

There are many symptoms of a broken engine computer board, just like your computer is broken, and there are many reasons for it.

If the computer board of the car engine is broken, it can be detected by the car diagnostic computer.

Related knowledge: 1. In order to facilitate the maintenance of electronically controlled gasoline injection engines by automobile maintenance personnel, all automobile manufacturers have designed special computer detectors for various types of gasoline injection engines produced by themselves.

2. As long as the detection plug of the computer detector of the model is connected with the fault detection socket on the car, and then the ignition switch is turned on, it is easy to read out all the fault codes stored in the engine computer from the display screen of the computer detector. The computer board is broken, and the computer detector cannot exchange data normally, and the connection error is displayed directly.

3. When the computer detector detects the computer and its control circuits, sensors, actuators, etc., it will also find problems

A data transfer error occurred.

Work instructions are sent to the computer through the computer detector, which cannot be executed.

It is not possible to use the computer detector to send instructions to eliminate the fault codes stored in the car computer.

Hello! The principle of getting started is very clear, and you know that it will damage those! Because when starting, the battery gives electricity to the starter, the starter will drive the flywheel (the flywheel is connected to the engine), so drive the car to start, if the starter will not be in place, it will be stuck in the flywheel, the engine can not start, and the motor will be burned out in serious cases, I hope you have.

Will it be useless, right, the control is broken???

Can repair, 1, when the repairer encounters a computer failure, one does not dare to conclude that it is the problem of the computer, and because of the high quality of the computer, they dare not easily decide to buy and replace;

2. Second, it is not easy to find similar computer products for substitution tests;

3. Third, even if you find the same kind of computer products (such as a car of the same type), you don't dare to plug in a good computer board for testing, because the damage to the computer is often caused by the failure of the external circuit. If the capacitor is broken (if there is a capacitor), replace it with the same model. If the car computer board is broken, it is best not to repair it, and replace it directly with the original factory, and there will always be hidden dangers after repairing.

Hello The computer board can be repaired if it is broken, but it is generally replaced with a new one, because the use effect is not good after repair.

It can be repaired, the general auto parts market has a special maintenance of this piece, you can go around, generally not particularly expensive, if you change to a new one, it is very expensive, it is better to repair it.

This is a place where you can go to the professional repair computer version to repair, the general auto repair shop, 4S shop does not repair?

This generally requires system inspection and maintenance.

Routine maintenance is generally divided into minor maintenance and major maintenance.

Minor maintenance generally refers to the change of oil and oil filter, usually once every 5000 kilometers.

Major maintenance generally replaces oil, oil filter, air filter, gasoline filter, cabin air filter, spark plug, brake fluid, and transmission fluid, generally once every 60,000 kilometers.

The phenomena that will occur when the car computer board is broken are as follows:

1. The dashboard will be displayed randomly, or the color will be gray.

2. The driving computer screen is not displayed at all.

3. Energy and electricity cannot be displayed, nor can it be fired.

4. You can't even open the door. The car computer board is easy to break: ( 1. The computer board will be corroded by the vehicle that has been immersed in water, resulting in broken circuit and adhesion of the component pins or damage to the components.

2. When the car is charging, the high-power regulator diode and other components are burned out due to the voltage adjustment of the charger is too high, or the polarity is reversed, or the key is opened while charging, or even the motor is started, or the battery connector is loose during the operation of the engine, causing the generator to directly supply power to the computer board.

Summary. Hello, 1. The engine failure problem light is always on. If there is no problem with other hardware of the engine after testing, but the fault problem light is still on, then we must suspect that the computer board is faulty; 2. The vehicle is not easy to start.

Because the vehicle needs to add fuel injection to the driving computer in the case of starting, if the driving computer is damaged, the concentration of the combustible mixture will be relatively low, so that the sub-vehicle is naturally very difficult to start; 3. Confusion of internal procedures. The vehicle's fuel injection, ignition timing, transmission shift logic, etc. will basically be affected, if the vehicle becomes very poor or even ignites when driving, we can try to detect whether the computer board is damaged.

Hello, 1. The engine failure problem light is always on. If there is no problem with other hardware of the engine after testing, but the fault problem light is still on, then we must suspect that the computer board is faulty; 2. The vehicle is not easy to start. Because the vehicle needs to add fuel injection to the driving computer in the case of starting, if the driving computer is not damaged before purity, the concentration of the combustible mixture will be relatively low, so that the vehicle is naturally very difficult to dry and start; 3. Confusion of internal procedures.

The vehicle's fuel injection, ignition timing, transmission shift logic, etc. will basically be affected, if the vehicle becomes very poor or even ignites when driving, we can try to detect whether the computer board is damaged.

Hello In the process of setting up the fire, the head fell, and then the car could not start, and the fault light was on.

Is it the circuit board that burned out.

Volkswagen Touron. It is also possible that the computer version will burn out.

The lights are on or something.

Is it possible that it was just a blown out fuse?

Which one is the headlight, dear?

If it lights up before starting, it is normal, because the on-board computer self-test stage will be lit, and the light that is not turned off means that there is a problem with that part of the bureau! But if all the lights are on during driving, it is a computer system failure, and it is recommended to go to 4S to eliminate the fault code!

Can be repaired.

The computer board of the car is the equivalent of the human brain on the car, which is responsible for receiving various signals and controlling each system through the built-in basic program identification, so as to maintain the normal driving of the vehicle.

The version of the driving computer will be the car's dynamic record in the new film, so that the maintenance personnel can call at any time, in the event of an accident, it is also very convenient to call up the right car in the computer in the runaway speed, steering and other actions and information, for judgment.

Cars are currently EFI engines, which means that the computer ECU is the core of the car, which is generally not easy to damage, unless it is hit or enters the water. If it is a professional organization, it can be repaired, but it is generally replaced with a new one, because the accident rate may increase after repair.

Yes, it depends on the description of the fault. Under normal circumstances, it is necessary to go to a professional 4S store. Or repair the factory.

Absolutely. If it can't be repaired, it can be replaced.