In the United States, Japan, Europe and other developed countries and regions, the service life of the three-way catalytic converter in the vehicle is generally 100,000 to 200,000 kilometers, while the service life of the three-way catalytic converter in China is generally only 30,000 to 50,000 kilometers.
Since the catalyst can simultaneously convert the main harmful substances in the exhaust gas into harmless substances. As environmental protection requirements become more demanding, more and more automobiles are equipped with exhaust gas catalytic converters and oxygen sensor devices. It is installed in the engine exhaust pipe, through the redox reaction, carbon dioxide and nitrogen, so it is also called ternary (effect) catalytic converter
How long does the car three-way catalytic converter need to be replaced?
Under normal use, it does not need to be replaced. It can be cleaned regularly. If the three-way catalytic converter casing is damaged or the exhaust tail pipe discharges particles, it needs to be replaced.
1. Turn off the engine and turn the ignition switch to the OFF position.
2. Disconnect the fuel pump fuse (relay or remove the oil pump circuit plug from the tank)
3. Remove the oil supply and return line of the vehicle injector, install the corresponding quick connector on the supply and return line according to the vehicle type, and connect it with the cleaning machine. (The return pipe can be installed with blind block,)
4. The ternary cleaning agent (1004 fuel repair agent) is added to the washing machine tank at a ratio of 1 bottle to 1000 ml.
5. Turn on the power, red to pick up the positive pole of the battery, and black to pick up the negative pole of the battery.
6. Pressure regulation: Set the pressure regulating valve to low pressure, turn the timer to the highest value, turn on the power switch of the washing machine, and adjust the working pressure of the cleaning machine according to the electric gasoline pump of the constructed vehicle.
7. Check: Check that all connectors are connected to ensure no oil leakage.
8. Cleaning: Start the engine, start the cleaning work, the engine will automatically extinguish the fire when the cleaning agent is used up. (When the engine alarm occurs, it will stop cleaning. You can stop or choose to continue according to the situation. If you continue, turn the timer to a high value.) If an abnormality occurs during the cleaning process, immediately turn off the power switch of the washing machine and continue working after the correction.
9. After cleaning, disconnect the power switch of the cleaning device, disassemble the connection between the cleaning equipment and the vehicle, and restore the original fuel pipeline and circuit system of the vehicle.
10. Start the engine and check for leaks. After everything is normal, the cleaning work is over.
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