How to Clean a Clogged Three-Way Catalytic Converter?

Where are the three major components of the Roewe i5 produced?

Roewe i5's three major components are all domestically produced. Below is the relevant introduction of the Roewe i5: 1. Exterior: The Roewe i5 is an A-class sedan under the Roewe brand, with a wheelbase of 2680mm, and dimensions of 4601mm in length, 1818mm in width, and 1489mm in height. 2. Engine types: The Roewe i5 is equipped with two types of engines, one is a 1.5-liter naturally aspirated engine, and the other is a 1.5-liter turbocharged engine. (1) Naturally aspirated engine: The 1.5-liter naturally aspirated engine delivers 120 horsepower and a maximum torque of 150 Nm. This engine reaches its maximum power at 6000 rpm and its maximum torque at 4500 rpm. It features DVVT technology and multi-point fuel injection, with an aluminum alloy cylinder head and cast iron cylinder block. It is paired with either a 5-speed manual transmission or a CVT. (2) Turbocharged engine: The 1.5-liter turbocharged engine produces 169 horsepower and a maximum torque of 250 Nm, achieving its maximum power at 5500 rpm and its maximum torque between 1700 to 4300 rpm. This engine is equipped with direct fuel injection technology and uses an aluminum alloy cylinder head and block. It is matched with a 7-speed dual-clutch transmission.

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What is the difference between Changan Automobile and Changan Oushang Automobile?

Changan Automobile and Changan Oushang Automobile differ in that Changan Automobile is a leader among Chinese automotive brands, while Oushang is one of the many automotive brands launched by Changan Automobile. Below are the relevant introductions to Changan Automobile and Changan Oushang Automobile: 1. Changan Automobile: The full name of Changan Automobile is Chongqing Changan Automobile Co., Ltd., a core vehicle manufacturer under China Ordnance Equipment Group Corporation. After many years of development, Changan Automobile has established research institutes in Japan, the United States, and Europe. It not only has the CS series, Ruicheng series, and Yidong series models but also has joint ventures with Ford and Mazda. According to the 2020 China Brand 500 list released last month, Changan Automobile ranked 86th. 2. Changan Oushang Automobile: Changan Oushang is a passenger vehicle brand under the Changan Automobile Group, leveraging the group's global R&D, supplier system, and manufacturing system. Its headquarters are located in Chongqing. Since April 2018, Changan Oushang has been renamed Oushang Automobile, with models including Changan Oushang Kosai, Changan Oushang Koshang, Changan Oushang X70A, Changan Oushang CX70T, Changan Oushang Kosai GT, and Changan Oushang X7.

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Do I need to remove items from the car for the annual inspection?

It is not necessary to remove items from the car for the annual inspection. Here are some key points to note about vehicle annual inspections: 1. Check whether the engine, chassis, body, and related equipment are clean, complete, and functional, whether the paint is uniform and aesthetically pleasing, whether major components have been replaced, and whether they match the initial inspection records. 2. Verify that the vehicle's braking system, steering control, lights, exhaust, and other safety features comply with the "Technical Conditions for Safe Operation of Motor Vehicles." 3. Confirm whether the vehicle has undergone modifications or alterations, and whether the registration details in the driving license, license plate, and vehicle records match the current condition of the vehicle, including any changes and whether approval and modification procedures have been completed.

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How to Clean Carbon Deposits in the Combustion Chamber?

Methods for cleaning carbon deposits in the combustion chamber are as follows: 1. Mechanical Method: This involves using steel wire brushes, scrapers, bamboo chips, or sandpaper to remove carbon deposits and oil stains. Special brushes and scrapers can be customized according to the shape of the parts to be cleaned. For example, fine copper wire brushes can be used to clean carbon deposits and oil stains around the injector nozzles; a specialized copper wire needle can be inserted into the pressure chamber to scrape off carbon deposits; cylindrical metal brushes can be used to remove carbon deposits and oil stains from valve guides and valve seats. 2. Walnut Shell Blasting Method: This method uses high-speed airflow to blast crushed walnut, peach, or apricot shell particles onto the part surface to remove carbon deposits and oil stains. This method is highly efficient and thorough, but it requires specialized equipment to generate high-speed airflow, making it relatively costly and thus not widely adopted. 3. Chemical Method: This involves using a chemical solvent or carbon remover to soften the carbon deposits and oil stains on the part surface, causing them to lose their adhesion to the metal, and then removing the softened carbon deposits. This method is highly efficient, effective, and less likely to damage the part surface. 4. Adding Diesel Additives: Most additives contain chemical components that can clean carbon deposits and oil stains. When the vehicle's condition is poor, adding the additive twice can effectively clean carbon deposits and oil stains in the engine combustion chamber, intake manifold, and fuel system, while also improving fuel quality.

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How Deep Should a Steel Wool Ball Be Inserted into the Exhaust Pipe?

Back pressure reaches around 35kp, calculated based on a 10 cm exhaust pipe opening. The following are the impacts of blocking the exhaust pipe: 1. Automatic transmission vehicles will downshift: When the exhaust pipe is blocked, automatic transmission vehicles experience a decrease in engine power and may downshift, which is caused by the blocked exhaust pipe. 2. Reduced acceleration power: The inability to expel exhaust gases leads to incomplete combustion, resulting in symptoms like reduced acceleration when the exhaust flow is obstructed. 3. Abnormal noises: Typically, abnormal noises from the exhaust system may also indicate excessive exhaust emissions. If left unaddressed for a long time, it may damage other components of the vehicle.

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What is the general maximum idle speed of an engine?

Engine idle speed limit is generally 5000 RPM. Internal combustion engines have a normal operating RPM range: Typically for small cars with 1.5~3.0L displacement, the RPM ranges between 1500~3000, with the most common being around 2000 RPM. Ordinary engines reaching 5000 RPM is basically the limit, while high-performance engines can reach 7,000 to 8,000 RPM. Premium models feature idle protection: Generally, higher-end vehicles are equipped with idle protection function. When pressing the accelerator during idle, the engine RPM won't increase - this is the engine protection feature of the vehicle.

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How to Clean a Clogged Three-Way Catalytic Converter?

Where are the three major components of the Roewe i5 produced?

What is the difference between Changan Automobile and Changan Oushang Automobile?

Do I need to remove items from the car for the annual inspection?

How to Clean Carbon Deposits in the Combustion Chamber?

How Deep Should a Steel Wool Ball Be Inserted into the Exhaust Pipe?

What is the general maximum idle speed of an engine?

What are the reasons for the Citroen C-Quatre's failure to start when igniting?

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Will driving without clothes result in penalty points?