Can the mismatch of the oxygen sensor value make the car shake?

1.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.

2.The automotive oxygen sensor is a key part to improve the fuel combustion quality of the automobile engine, and the oxygen sensor is installed on the engine exhaust pipe. Faulty oxygen sensors will generally turn on the light, the engine will shake, the exhaust will have a sudden sound, there will be a choking smell, and fuel consumption will increase.

3.The function of the oxygen sensor is to determine whether there is excess oxygen in the exhaust of the engine after combustion, that is, the oxygen content, and convert the oxygen content into a voltage signal and transmit it to the engine computer, so that the engine can realize the closed-loop control with the goal of excess air factor; Ensure that the three-effect catalytic converter has the maximum conversion efficiency for the three pollutants in the exhaust gas: hydrocarbon (HC), carbon monoxide (CO) and ammonia oxide (NOX), and maximize the conversion and purification of the emitted pollutants.

There is an oxygen sensor, one before the other, and after the front oxygen sensor fails, the accurate oxygen concentration cannot be read. Naturally, it is impossible to accurately stabilize the air-fuel ratio. The air-fuel ratio is out of tune, and of course the engine cannot function properly.

There will be an impact. If the latter one is broken, whether your three-way catalytic converter is good or bad, the car can't tell.

The oxygen sensor is actually a miniature battery, its voltage signal changes with the concentration of oxygen in the exhaust pipe, if the voltage change can not be seen when it is started to work normally, it proves that the oxygen sensor is broken.

Hello dear, why do you change the oxygen sensor car or shake which spark plug or ignition coil is a problem. Incomplete cleaning or three-way catalyst poisoning leads to errors in the original data and cleaned data in the automotive computer, resulting in the fuel system being unable to correctly supply the oil required by the engine, which is the ,.. the engine cannot operate normallyAfter the car changed the front oxygen sensor, the idle speed was unstable.

The premise is to pay attention to the fact that you are replacing the original oxygen sensor, the sensor resistance is large and small, and it will also cause this situation if there is a discrepancy, so make sure that you are replacing it with the original sensor. The key position is still in the oxygen sensor to focus on this part of the inspection. The other is to check whether the oxygen sensor plug is loose or has poor contact.

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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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Is the car shaking powerless fuel and oxygen exchange sensor effective? Is the car shaking powerless and fuel-efficient oxygen exchange sensor tube Bi Sui noisy? The car shakes and is powerless, and the oxygen exchange sensor does not work:

1. Spark plug damage: the spark plug is damaged, the spark plug pole gap is worn out, the spark plug ignition is insufficient, the mixture is not fully burned resulting in acceleration is shaking, and there is a crack in the ceramic part of the spark plug, and the guide serves the spark plug not ignition, and a cylinder does not work will also cause acceleration jitter; 2. Poor fuel quality: the quality of gasoline is not good, resulting in poor atomization effect of the fuel injector, insufficient combustion of the mixture in the cylinder, which will also lead to weak engine shaking. 3. Excessive carbon deposits:

After a certain mileage, the dirty throttle will cause the throttle to be closed poorly or the idle stepper motor to be stuck, which can cause the engine to idle too high, and the carbon deposit generated by the engine in the process of working socks will also cause the vehicle to shake, especially when starting the vehicle. @2019