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List of contents of this article:

• 1, How to deal with ecu failure
• 2, Fault table of engine electrical control unit (ECU) failure Now
• 3, What are the symptoms of ecu broken
• 4、What's the problem with the ecu failure
• 5,Hearthstone Arena win rate What are the symptoms of broken car ecu

How to deal with ecu failure

Under normal circumstances, if ecu is damaged, it cannot be repaired and can only be replaced.If the ecu is damaged, it is recommended to replace it. Ecu is an engine-controlled computer. This part is called the brain of the engine. Without ecu, the engine cannot operate normally.

In general, ecu damage cannot be repaired and can only be replaced. If the ecu is damaged, it is recommended to replace it. Ecu is the engine-controlled computer, which is called the brain of the engine. Without ecu, the engine cannot run normally. The price of ecu is relatively expensive, and most of the brand-new original ecu are more than 10,000 yuan.

The intuitive inspection method is to query circuits, components, etc. according to visual effects, and then directly search for the location and factors of the problem in abnormal situations; the contact inspection method is that in the working state of ecu, the inspectors find the problem point according to direct contact.

Replace the fuse: Fuse burnout is one of the common problems of the electric vehicle ECU, which will cause the ECU to not work properly. The solution is to replace the fuse. Charging or replacing the battery: Insufficient battery power will also cause the ECU to not work properly. The solution is to charge or replace the battery.

After ecu is processed, the engine operation can be adjusted through the actuator. Most of the ecu will be fixed in the engine compartment, and the ecu will have a metal shell, which is sealed. There can also be a lot of heat sinks on the ecu shell. When the car is wading in the water, it may affect ecu damage.

ecu can be processed to control the engine operation through the actuator. Ecu is generally fixed in the engine compartment, and ecu will have a metal shell, which is sealed.There will be many heat sinks on the ecu shell. When the car is wading in the water, it may cause ecu damage.

Fault of engine electrical control unit (ECU) failure Performance

These failures will lead to ECU'sThe control function fails or the control system does not work well, resulting in engine start-up difficulties, unstable idle speed, poor power performance, etc.

The ECU is broken, and there are the following symptoms: the fault light is on and the vehicle cannot be started; the fuel pump works normally but does not inject fuel, and the fuel pump relay is connected normally; there is fire, but there is no fuel injection, which is a problem of the internal program failure of the ECU.

ecu is broken, with the following symptoms: 1. The vehicle can't start; there is no ignition. The fuel pump works normally but does not inject oil. The fuel pump relay is connected normally; there is fire, but there is no fuel injection. ECU internal program failure (incorrect fuel injection program); fuel injection is normal, but there is no high-pressure fire.

What are the symptoms of ecu broken

If the ECU is broken, the following symptoms will appear: the vehicle cannot start;There is no ignition, the fuel pump works normally but does not inject oil, and the fuel pump relay is normally connected; there is fire, but there is no fuel injection. ECU internal program failure (incorrect fuel injection program); fuel injection is normal, but there is no high-pressure fire.

These failures will cause the control function of the ECU to fail or the control system to work poorly, resulting in difficult engine start-up, unstable idle speed, poor power performance, etc.

The symptoms of automobile ECU failure are as follows: When the current oxygen sensor fails, the ECU cannot obtain information about the oxygen concentration in the exhaust pipe, so the feedback control of the concentration of the mixed gas cannot be carried out. As a result of an increase in engine fuel consumption and exhaust pollution, the engine will have idling instability, fire failure, gasp vibration and other faults.

ecuWhat is the fault?

1. The causes of ecu failure are: power supply circuit failure; output power module failure; memory failure; ECU water inlet and moisture failure.

2. Problems of ecu fault indication: poor heat dissipation, circuit failure, etc. Poor heat dissipation may cause the circuit board to burn out, and water inlet may also cause the circuit board to burn out, or a component on the circuit board to fail.

3. If the ecu failure of the car may be due to poor heat dissipation, the circuit board may be burned, the circuit board may be burned due to water inlet, and a component on the circuit board may fail. After the ecu is damaged, it needs to be replaced with a new one. Ecu is an important part of the car. Without this part, the car can't work normally.

4. If the ecu of the car appearsThe fault problem may be due to poor heat dissipation affecting the burning of the circuit board, it may be due to the water inlet affecting the burning of the circuit board, or it may be due to a fault problem with a component on the circuit board. After the ecu is damaged, it needs to be replaced with a new one.

What are the symptoms of the car ecu broken

If the ECU is broken, the following symptoms will appear: the vehicle cannot start; no ignition, the fuel pump works normally but does not inject fuel, the fuel pump relay is normally connected; there is fire, But there is no fuel injection. ECU internal program failure (incorrect fuel injection program); fuel injection is normal, but there is no high-pressure fire.

If the car's ECU is damaged, the symptom will be that the car cannot be started, Luxo cannot be refueled, and fuel can be injected.The device cannot work properly. In addition to circuit failure, the ECU can only be repaired after confirming that the external circuit is normal.

Check whether the parameter values of electrical components such as sensors and actuators are within the specified technical scope. If there is an abnormality, they should be replaced. 3) Check whether there is a break, short circuit or poor contact fault between the ECU plug and the parts plug line, and if there is, it should be eliminated in time.

When the ECU fails, the engine will also have the following symptoms: the vehicle cannot start. There is no ignition. The fuel pump works normally but does not inject oil, and the fuel pump relay is connected normally. There is fire, but no fuel is sprayed. ECU internal program failure (fuel injection program error). The fuel injection is normal, but there is no high-pressure fire.

Special faults for engineeringVehicles, due to the special working environment, erosion of water, rain, snow, mud, dust, oil, etc., large load and long working time and violent impact vibration during operation will cause ECU deformation, cracking, component pin breakage, short circuit, adhesion or component damage and other faults.