Will there be engine shake when the oxygen sensor is broken?

Absolutely. If there is a problem with the oxygen sensor, the car computer will not be able to strictly control the amount of oil, and there will be several situations such as not being able to do it or too much or too little, and the result is that the engine is unstable and shaking, and it may also damage the life of the engine. ”

Hello! If the oxygen sensor damages the engine, there will be no shaking, but the engine's fault light will be displayed, and the fuel consumption will increase significantly.

When the oxygen sensor is damaged, it will lead to weak engine acceleration, insufficient power, and high fuel consumption.

Oxygen sensors are divided into front oxygen sensors and rear oxygen sensors. The front oxygen sensor mainly detects the oxygen content in the exhaust gas discharged after combustion. If the oxygen content is high.

It shows that there is more gas and less oil. That is, the mixture is diluted. The less oil there is, the less oxygen is lost by combustion.

Therefore, the oxygen content in the exhaust gas is more! In this case, it sends a signal to the engine computer. The engine computer controls the injectors.

Reduced fuel injection! Conversely, if the oxygen sensor detects that the oxygen content is low. It means that there is a lot of oil.

The engine computer will reduce fuel injection. In this way, the fuel consumption, power, and engine working state can be adjusted to the best state. If the signal is wrong.

Engine injection control will be out of order! There will be high fuel consumption and a decrease in power. Loud noise.

Fault lights on, etc. In the case of the rear oxygen sensor, it is installed behind the three-way catalytic converter. Provide the composition data of the exhaust gas filtered by the three-way catalytic converter to the engine computer.

As a result, the engine computer detects the working efficiency of three-way catalysis through the data of the front and rear oxygen sensors!

Will the engine shake when the oxygen sensor is broken? Will the engine shake when the oxygen sensor is broken? The oxygen sensor is damaged, and the engine will shake.

If there is a problem with the oxygen sensor, the car computer has no way to strictly control the amount of oil, and there will be several situations such as not being able to do it or too much or too little, and the result is that the engine is running unstable and shaking, which may damage the life of the engine. The following is the function of the oxygen sensor: 1. Detect the oxygen concentration in the exhaust gas to ensure that the three-way catalytic converter has the maximum conversion efficiency for the three pollutants of hydrocarbons, carbon monoxide and nitrogen oxides in the exhaust, and maximize the conversion and purification of the discharged pollutants.

2. Control the emission of automobile exhaust, effectively reduce the air pollution of the automobile to the environment, improve the quality of fuel combustion of the automobile engine, and help the fuel consumption of the vehicle. @2019

Oxygen sensor malfunction problem phenomenon: The engine does not shake. Once the oxygen sensor fails, the computer of the electronic fuel injection system can not get the information of the oxygen concentration in the exhaust pipe, so it can not feedback and control the air-fuel ratio, which will increase the engine fuel consumption and exhaust pollution, and the engine will have unstable idling, lack of fire, surge and other fault phenomena.

The role of the rear oxygen sensor:

1. The exhaust gas produced after the combustion of the car can only be discharged after the purification of the three-way catalytic converter, and the oxygen sensor is to detect the oxygen content in the purified exhaust gas, and feed it back to the ECU, and the computer will compare the data given by the pre-oxygen, if the data given by the pre-oxygen and the post-oxygen are the same (generally the pre-oxygen signal is greater than the post-oxygen), then the three-way catalytic failure can be judged.

2. If the rear oxygen sensor is broken, the ECU will not receive the signal, and the engine will of course be worried, so the engine fault light of the car dashboard will light up to remind the owner to pay attention to maintenance; If it is only after oxygen damage, then the impact on fuel consumption is not great, because its main role is to test the three-way catalytic filtration effect, the owner is worried about the fuel cost should refer to the performance symptoms of the pre-oxygen bad.

Photo by Tang Longlong) @2019

Oxygen sensor failure phenomenon: The engine does not shake. Once the oxygen sensor fails, the computer of the electronic wheel fuel injection system will not be able to obtain the information of oxygen concentration in the exhaust pipe, so that it can not feedback and control the air-fuel ratio, which will increase the fuel consumption of the engine and exhaust pollution, so that the engine suffers from idle instability, fire, surge and other faults.

Functions of the rear oxygen sensor:

1.The exhaust gas produced after the combustion of the car can only be discharged after being purified by the three-way catalytic converter. The rear oxygen sensor detects the oxygen content in the purified exhaust gas and feeds it back to the electronic control unit.

The computer will compare the data given by the pre-oxygen and the post-oxygen. If the data given by the pre-oxygen and the post-oxygen are the same (generally the pre-oxygen signal is greater than the post-oxygen signal), the three-way catalytic failure can be judged.

2.If the rear oxygen sensor is damaged, the ECU will not collect the signal to the tent. Of course, the engine is worried.

Then the engine fault light on the dashboard of the car will illuminate, reminding the owner to pay attention to maintenance. If it is only damaged by the rear oxygen, it has little impact on fuel consumption, because its main role is to test the filtration effect of the three-way catalysis, and the fuel consumption that the owner is worried about should refer to the symptoms of the pre-oxygen.

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