Can the cleaner for cleaning the throttle valve clean the oxygen sensor?

It can remove the carbon deposit on the catalyst without any adverse effect on the performance of the catalyst.

Automobile annual inspection usually needs to check the exhaust gas, but if this item is unqualified, the staff will usually advise you to clean the three-way catalyst. Because the key to filter exhaust pollutants is the three-way purifier, the blockage of catalytic converter will lead to excessive emissions.

The blockage or poisoning of the three-way catalytic converter will lead to excessive emissions, so when there is a problem with exhaust, the first thing to do is the three-way catalytic converter. The three-way catalytic cleaning is relatively simple. Remove the exhaust port of the three-way catalytic converter and soak it in oxalic acid solution.

Extended data:

Under the catalysis of high temperature and platinum, the oxygen attached to the oxygen sensor is exhausted, resulting in a voltage difference. The output voltage of rich mixture is close to 1V, and that of lean mixture is close to 0V.

According to the voltage signal of oxygen sensor, the air-fuel ratio is controlled to adjust the fuel injection pulse width, so the electronic control of oxygen sensor is the key sensor of fuel metering. Only at high temperature (the terminal reaches above 300℃) can the oxygen sensor fully reflect its characteristics and output voltage. At about 800℃, the reaction to the change of mixture is the fastest.

The oxygen potential in various heating furnaces or exhaust pipes is measured by ceramic sensitive elements, and the corresponding oxygen concentration is calculated according to the principle of chemical balance, so as to monitor and control the combustion air-fuel ratio in the furnace and ensure the product quality and exhaust emission meet the standards. Widely used in atmosphere control of various coal-fired, oil-fired and gas-fired furnaces.

Oxygen sensor is used in the feedback control system of electronically controlled fuel injection device, which is used to detect the concentration of oxygen and air-fuel ratio in exhaust gas, monitor the combustion of theoretical air-fuel ratio (14.7: 1) in the engine, and send feedback signals to the computer.

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