Why the Model 2000 Oxygen Sensor Breaks Often

Because the working environment is often in the situation of excessive carbon content, aging and poisoning will occur. Aging refers to the reduction of work efficiency due to high temperature, which can not bear it, and the poisoning is due to the failure of the oxygen sensor due to excessive carbon monoxide accumulation, resulting in failure poisoning. In addition, if there is a burning of the wire inside, or the sensor line falls off, it will also make the front oxygen sensor fail, if the vehicle in the event of a decrease in power, acceleration difficulty, idle instability during operation, increased fuel consumption, and the car emissions of pollutants exceed the standard, it may be the performance of the front oxygen sensor is broken.

Of course, it is also necessary to check the engine of the car and whether it is a spark plug failure or a faulty oil supply device.

Hello, the engine itch sensor is broken, first of all, the fault light is on, it's over, it's fuel, the car power drops, change it as soon as possible, thank you.

Hello, the car is generally installed with two oxygen sensors, if the front oxygen sensor is broken, it will lead to high engine fuel consumption, if the rear oxygen sensor is broken, it will not be able to detect the quality of the three-way catalytic converter, it is recommended that you replace it in time.

Hope it helps.

The automobile oxygen sensor is installed on the exhaust pipe, and due to the different functions, it can be divided into the front oxygen transmission mountain gear sensor and the rear oxygen sensor. Here's how the front and rear oxygen sensors are broken. First, the performance of the broken front oxygen sensor:

1. Unstable idling and excessive fuel consumption lead to obvious damage to the front oxygen sensor, resulting in insufficient engine power, slow acceleration and black smoke from the exhaust. 2. The engine is chaotic, the fault light is on, the engine exhaust has a sudden sound, a choking smell, and fuel consumption increases. Second, the performance of the broken rear oxygen sensor:

1. The engine fault light is on, and there is a sudden sound in the exhaust, a strong and unpleasant smell, and the fuel consumption increases. 2. The vehicle shakes and has symptoms such as frustration, lack of power, car frustration, slow speed, and inability to run.

There are many reasons for the total failure of the oxygen sensor, including poor fuel quality, spark plug failure, and the failure of the three-way catalytic converter, which is analyzed in detail below. 1.Poor fuel quality:

If the quality of the fuel added to the car is too low to be effectively burned in the engine cylinder, more harmful substances and impurities will be produced in the exhaust gas, which will lead to damage to the car's oxygen sensor. In this case, it is necessary to add high-quality fuel, and add a bottle of fuel treasure every 3000-5000 kilometers to clean the fuel tank. 2.

Spark plug failure: When the spark plug fails, it cannot be ignited normally, resulting in the fuel and mixture in the engine cylinder cannot be burned effectively, resulting in more harmful substances and impurities, and damage to the oxygen sensor. In this case, check the degree of wear of the spark plug, check whether the working voltage of the live wire coil is normal, and replace the spark plug with a new one if necessary.

3.Three-way catalytic converter failure: The three-way catalytic converter converts toxic gases in automobile exhaust into harmless substances through its redox function.

If the three-way catalytic converter is not working properly, the oxygen sensor will be damaged and will need to be repaired in a repair shop.

Damage to the oxygen sensor is mainly related to the oil product, especially the car that often uses leaded gasoline, even if the new oxygen sensor is replaced, the service life is not very long, and the silicon poisoning of the oxygen sensor is also more common, it is recommended that the owner use better quality fuel and lubricating oil when driving.

Attached: Oxygen sensor inspection method:

1. Heater resistance check:

Unplug the wiring harness plug of the oxygen sensor dust signal, and use the multimeter resistance file to measure the resistance between the terminal of the oxygen sensor and the lap iron post, if it does not meet the standard, it means that there is a problem with the oxygen sensor, and the oxygen sensor should be replaced in time to avoid vehicle failure caused by abnormal oxygen sensor when driving, which affects normal driving.

2. Measurement of feedback voltage:

When measuring the feedback voltage of the oxygen sensor, the wiring harness plug of the oxygen sensor should be unplugged, and it needs to be detected against the circuit diagram of the vehicle model, a thin wire drawn from the feedback voltage output binding post of the oxygen sensor, and then plugged in the wiring harness plug, in the engine operation, the feedback voltage is measured from the lead wire, and when the feedback voltage of the automobile oxygen sensor is detected, it is best to use a pointer-type multimeter with low range and high impedance, which can be more intuitive when detecting.

The damage to the oxygen sensor is mainly related to the oil product, especially in cars that often use leaded gasoline. Even if the oxygen sensor is replaced with a new one, the service life is not very long, and silicon poisoning of the oxygen sensor is common. Car owners are advised to use better quality fuels and lubricants while driving.

Attachment: How to check the oxygen sensor:

1. Heater resistance check:

Unplug the wiring harness of the oxygen sensor and measure the resistance between the heater binding post and the ground binding post in the oxygen sensor terminal with the resistance stop of the multimeter. If it does not meet the standard, it means that there is a problem with the oxygen sensor, and the oxygen sensor should be replaced in time to avoid vehicle failure caused by abnormal oxygen sensor during driving, which will affect normal driving.

2.Measurement of feedback voltage:

When measuring the feedback voltage of the oxygen sensor, unplug the wiring harness of the oxygen sensor and check it according to the circuit diagram of the vehicle model. Connect a thin wire from the output of the feedback voltage of the oxygen sensor and plug it into the harness plug. When the engine is running, the feedback voltage from the leads is measured.

When testing the feedback voltage of an automotive oxygen sensor, it is best to use a low-range, high-impedance analog multimeter, which can be more intuitive.

The key to damage to the oxygen sensor is related to the oil product, especially in cars that often run on leaded gasoline. Even if the lambda sensor is replaced with a new one, the service life may not be very long, and the occurrence of silicon poisoning of the oxygen sensor is quite common. It is recommended that friends use *** fuel and lubricating oil when driving.

Possible reasons why the oxygen sensor is frequently damaged:1. The most important thing is to pay attention to the quality of fuel and try not to go to small gas stations to refuel, especially in high-speed service areas. 2.Check whether the working voltage of the spark plug and ignition coil is normal.

3. Check whether the three-way catalysis is working well and whether there is any blockage. Once the oxygen sensor fails, it will cause the computer of the electronic fuel injection system to be unable to obtain 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. Therefore, the oxygen sensor should be replaced or repaired as soon as possible after it is broken.

Attached: Oxygen sensor detection method: 1. Heater resistance detection:

Unplug the wiring harness plug of the oxygen sensor, and measure the resistance between the heater and the lap iron post in the wiring end of the oxygen sensor with a multimeter resistance file. 2. Measurement of feedback voltage: when measuring the feedback voltage of the oxygen sensor, the wiring harness plug of the oxygen sensor should be unplugged, and the circuit diagram of the model should be checked, a thin wire drawn from the feedback voltage output binding post of the oxygen sensor, and then plugged in the wiring harness plug, in the engine rotation, the feedback voltage should be measured from the lead wire, and the feedback voltage of the automobile oxygen sensor should be checked when the feedback voltage of the automobile oxygen sensor is checked, and it is best to use a pointer-type multimeter with low range and high impedance, which can be more intuitive during the inspection.

The above is all the content I shared with my friends, so what are the problems with the oxygen sensor after reading it? Have you basically understood this problem? After reading this knowledge, it is not very helpful, and finally I hope that my sharing of the car can help my friends.

Nowadays, cars are our daily way of traveling, which is clever but often encounters some problems in the process of use. For example, the oxygen sensor is always broken, so let's introduce the reasons below. There are many reasons for the total failure of the oxygen sensor, including degraded fuel quality, spark plug failure, and three-way catalyst failure.

Let's take a closer look. 1. Fuel quality decline: If the fuel quality added to the car decreases excessively, the engine cylinder will not be able to be effectively combusted, and considerable damage substances and impurities will be produced in the exhaust gas, which will affect the damage of the vehicle oxygen sensor.

In this case, high-quality fuel must be added, and in addition, every 3000-5000 kilometers of driving, you need to add a bottle of fuel treasure to clean the car's fuel tank. 2. Spark plug failure problem: If the spark plug has a fault problem, it cannot be ignited normally, of course, the fuel and mixture in the engine cylinder can not be effectively combusted, and many damaged substances and impurities will damage the oxygen sensor.

In this case, it is necessary to check the degree of wear of the spark plug, check whether the working voltage of the live coil is normal, and replace the new spark plug if necessary. 3. Three-way catalyst failure: The three-way catalyst converts the old hail toxic gas in the automobile exhaust into harmless substances through its redox effect, but when the three-way catalyst fails and cannot work normally, the oxygen sensor will also be damaged.

This situation must be repaired in a repair shop.