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Changan Auchan
LQSQP
76$
| Quantity: | |
|---|---|
Product introduction
Factory supply catalytic converters for Changan Auchan，This product we use high-quality raw materials 409 stainless steel, and with high flow ceramic carrier, to help each car can purify exhaust gas, reduce fuel consumption, improve power, and extinguish engine failure lights!
First, loading position and structural characteristics
Installation position
The three-way catalytic converter is located at the front end of the exhaust system, specifically in the bulge between the exhaust manifold and the middle part of the exhaust pipe. Users can locate in the following ways:
Visual inspection: Under the vehicle chassis, the first section of the exhaust manifold will have a distinct bulge structure, shaped like a "marching kettle" or a "rectangular iron box".
Oxygen sensor auxiliary positioning: there is an oxygen sensor before and after it (the front oxygen sensor is used to detect the oxygen content of the exhaust gas, and the rear oxygen sensor monitors the efficiency of the catalytic converter), and the installation section of the three-way catalytic converter can be indirectly confirmed through the location of the sensor.
Internal structure
The core is a honeycomb ceramic carrier, and the surface is sprayed with platinum (Pt), rhodium (Rh), palladium (Pd) and other precious metal catalysts, and the exhaust gas is purified through high-temperature catalytic reaction.
The housing is made of heat-resistant metal with a shock-absorbing layer inside to prevent the ceramic carrier from cracking.
Second, core functions and loading necessity
Tail gas purification function
Through the REDOX reaction, the three main harmful gases in the tail gas are converted into harmless substances:
CO (Carbon monoxide) → CO₂ (carbon dioxide)
HC (hydrocarbon) → H₂O (water)
NOx (Nitrogen oxide) → N₂ (nitrogen)
The conversion efficiency can reach more than 90%, significantly reducing environmental pollution.
Vehicle performance guarantee
Compliance: The installation of a three-way catalytic converter is a necessary condition to meet the national sixth class emission standards, and its absence or damage will lead to unqualified annual inspection.
Power optimization: The blockage of the catalytic converter will increase the exhaust resistance, resulting in decreased power and increased fuel consumption, and normal installation can maintain stable engine performance.
System protection
Prevent untreated corrosive gases (such as NOx) from damaging exhaust pipes and engine components.
Through oxygen sensor data feedback, the control of air-fuel ratio of ECU is optimized to improve combustion efficiency.
3. Maintenance and fault judgment
Regular cleaning
Necessity: Urban congestion and road conditions can easily lead to inadequate fuel combustion, and carbon deposits are attached to the surface of the catalytic converter, which needs to be cleaned every 10,000 kilometers or before annual inspection.
Method: Bottle cleaning (no removal) or oxalic acid soaking method (for serious blockage) can be used, the latter is low cost but requires disassembling the catalyst.
Fault warning and handling
Failure light warning: The instrument panel lights up the engine failure light, which may be the front and rear oxygen sensor data abnormal or catalyst failure.
Symptom judgment:
Abnormal exhaust sound: similar to tractor sound, may be due to catalytic converter theft or carrier fragmentation.
Harsh exhaust gas: When the purification function fails, the exhaust gas contains sulfide odor.
Replacement cycle: normal service life of about 100,000 km, if the precious metal coating failure needs to be replaced.
4. Special precautions
Anti-theft measure
The three-way catalytic converter is easy to become the target of theft because it contains precious metals, it is recommended to install a protective cover or choose a monitoring area when parking.
Oil and driving habits
The use of low-grade gasoline or long-term short-distance driving will accelerate carbon deposition in the catalytic converter, and it is recommended to regularly run at high speed to promote carbon deposition combustion.
Product introduction
Factory supply catalytic converters for Changan Auchan，This product we use high-quality raw materials 409 stainless steel, and with high flow ceramic carrier, to help each car can purify exhaust gas, reduce fuel consumption, improve power, and extinguish engine failure lights!
First, loading position and structural characteristics
Installation position
The three-way catalytic converter is located at the front end of the exhaust system, specifically in the bulge between the exhaust manifold and the middle part of the exhaust pipe. Users can locate in the following ways:
Visual inspection: Under the vehicle chassis, the first section of the exhaust manifold will have a distinct bulge structure, shaped like a "marching kettle" or a "rectangular iron box".
Oxygen sensor auxiliary positioning: there is an oxygen sensor before and after it (the front oxygen sensor is used to detect the oxygen content of the exhaust gas, and the rear oxygen sensor monitors the efficiency of the catalytic converter), and the installation section of the three-way catalytic converter can be indirectly confirmed through the location of the sensor.
Internal structure
The core is a honeycomb ceramic carrier, and the surface is sprayed with platinum (Pt), rhodium (Rh), palladium (Pd) and other precious metal catalysts, and the exhaust gas is purified through high-temperature catalytic reaction.
The housing is made of heat-resistant metal with a shock-absorbing layer inside to prevent the ceramic carrier from cracking.
Second, core functions and loading necessity
Tail gas purification function
Through the REDOX reaction, the three main harmful gases in the tail gas are converted into harmless substances:
CO (Carbon monoxide) → CO₂ (carbon dioxide)
HC (hydrocarbon) → H₂O (water)
NOx (Nitrogen oxide) → N₂ (nitrogen)
The conversion efficiency can reach more than 90%, significantly reducing environmental pollution.
Vehicle performance guarantee
Compliance: The installation of a three-way catalytic converter is a necessary condition to meet the national sixth class emission standards, and its absence or damage will lead to unqualified annual inspection.
Power optimization: The blockage of the catalytic converter will increase the exhaust resistance, resulting in decreased power and increased fuel consumption, and normal installation can maintain stable engine performance.
System protection
Prevent untreated corrosive gases (such as NOx) from damaging exhaust pipes and engine components.
Through oxygen sensor data feedback, the control of air-fuel ratio of ECU is optimized to improve combustion efficiency.
3. Maintenance and fault judgment
Regular cleaning
Necessity: Urban congestion and road conditions can easily lead to inadequate fuel combustion, and carbon deposits are attached to the surface of the catalytic converter, which needs to be cleaned every 10,000 kilometers or before annual inspection.
Method: Bottle cleaning (no removal) or oxalic acid soaking method (for serious blockage) can be used, the latter is low cost but requires disassembling the catalyst.
Fault warning and handling
Failure light warning: The instrument panel lights up the engine failure light, which may be the front and rear oxygen sensor data abnormal or catalyst failure.
Symptom judgment:
Abnormal exhaust sound: similar to tractor sound, may be due to catalytic converter theft or carrier fragmentation.
Harsh exhaust gas: When the purification function fails, the exhaust gas contains sulfide odor.
Replacement cycle: normal service life of about 100,000 km, if the precious metal coating failure needs to be replaced.
4. Special precautions
Anti-theft measure
The three-way catalytic converter is easy to become the target of theft because it contains precious metals, it is recommended to install a protective cover or choose a monitoring area when parking.
Oil and driving habits
The use of low-grade gasoline or long-term short-distance driving will accelerate carbon deposition in the catalytic converter, and it is recommended to regularly run at high speed to promote carbon deposition combustion.
