Home > News > Content
Oxygen Sensor Common Troubleshooting Solution

With the oxygen sensor technology more and more widely used, making the car exhaust emissions greatly reduced for our living environment to reduce a lot of exhaust emissions, reducing the pollution of the atmosphere, the oxygen sensor in the course of the use of some Failure, then let us introduce, oxygen sensor common faults.

First, the common fault of oxygen sensors

1. Oxygen sensor poisoning

Oxygen sensor poisoning is often a difficult and difficult to prevent and control a failure, especially in the often use of leaded gasoline cars, even the new oxygen sensor, can only work thousands of kilometers. If only a slight lead poisoning, then use a box of lead-free gasoline, you can eliminate the oxygen sensor surface lead, to return to normal work. But often due to the high exhaust temperature, leaving the lead into its internal, hinder the proliferation of oxygen ions, so that oxygen sensor failure, then only can be replaced.

In addition, oxygen sensor silicon poisoning is also common. In general, the silicon dioxide and silicone rubber gaskets produced by the combustion of silicon compounds contained in gasoline and lubricants use improperly emitting silicone gases that will render the oxygen sensor ineffective, thus using good quality fuel and lubricants The Repair and use the right to choose and install the rubber gasket, do not apply to the sensor factory use of solvents and anti-adhesion agent.

Carbon deposition

Due to the engine combustion is not good, in the oxygen sensor surface formation of carbon deposition, or oxygen sensor into the internal oil or dust and other deposits, will hinder or block the outside air into the oxygen sensor inside the oxygen sensor output signal inaccurate, ECU can not be timely To correct air-fuel ratio. Resulting in carbon deposition, mainly for the fuel consumption increased, significantly increased the concentration of emissions. At this point, if the sediment is cleared, it will return to normal work.

3. Oxygen sensor ceramic fragmentation

Oxygen sensor ceramic hard and brittle, with a hard object percussion or purge with a strong airflow, are likely to break it and fail. Therefore, the treatment should be particularly careful to find the problem in time to replace.

4. Heater resistance wire blown

For the heating type oxygen sensor, if the heater resistance wire ablation, it is difficult to make the sensor to the normal working temperature and lose its role.

Oxygen sensor as a typical sensor, has now been widely used, the general use of automotive oxygen sensor is to detect the exhaust emissions of oxygen in the car, by detecting the amount of oxygen to determine the concentration of the engine mixture of concentrated or thin, Generated signal to the engine control unit, and then the engine control unit changes the fuel injection time according to the signal. The ultimate goal is to better control emissions, so that emissions are also at the same time fuel-efficient.

-> With the oxygen sensor technology more and more widely used, making the vehicle exhaust emissions greatly reduced for our living environment to reduce a lot of exhaust emissions, reducing the pollution of the atmosphere, the oxygen sensor in the course of the use There will be some failure, then tell you about the oxygen sensor of the common faults.

First, the common fault of oxygen sensors

1. Oxygen sensor poisoning

Oxygen sensor poisoning is often a difficult and difficult to prevent and control a failure, especially in the often use of leaded gasoline cars, even the new oxygen sensor, can only work thousands of kilometers. If only a slight lead poisoning, then use a box of lead-free gasoline, you can eliminate the oxygen sensor surface lead, to return to normal work. But often due to the high exhaust temperature, leaving the lead into its internal, hinder the proliferation of oxygen ions, so that oxygen sensor failure, then only can be replaced.

In addition, oxygen sensor silicon poisoning is also common. In general, the silicon dioxide and silicone rubber gaskets produced by the combustion of silicon compounds contained in gasoline and lubricants use improperly emitting silicone gases that will render the oxygen sensor ineffective, thus using good quality fuel and lubricants The Repair and use the right to choose and install the rubber gasket, do not apply to the sensor factory use of solvents and anti-adhesion agent.

Carbon deposition

Due to the engine combustion is not good, in the oxygen sensor surface formation of carbon deposition, or oxygen sensor into the internal oil or dust and other deposits, will hinder or block the outside air into the oxygen sensor inside the oxygen sensor output signal inaccurate, ECU can not be timely To correct air-fuel ratio. Resulting in carbon deposition, mainly for the fuel consumption increased, significantly increased the concentration of emissions. At this point, if the sediment is cleared, it will return to normal work.

3. Oxygen sensor ceramic fragmentation

Oxygen sensor ceramic hard and brittle, with a hard object percussion or purge with a strong airflow, are likely to break it and fail. Therefore, the treatment should be particularly careful to find the problem in time to replace.

4. Heater resistance wire blown

For the heating type oxygen sensor, if the heater resistance wire ablation, it is difficult to make the sensor to the normal working temperature and lose its role.

Oxygen sensor as a typical sensor, has now been widely used, the general use of automotive oxygen sensor is to detect the exhaust emissions of oxygen in the car, by detecting the amount of oxygen to determine the concentration of the engine mixture of concentrated or thin, Generated signal to the engine control unit, and then the engine control unit changes the fuel injection time according to the signal. The ultimate goal is to better control emissions, so that emissions are also at the same time fuel-efficient.