Can the Catalytic Converter Be Replaced with Just the Inner Core?

2 Answers
LunaDella
07/29/25 5:32am
The catalytic converter cannot be replaced with just the inner core, as merely changing the inner core will not pass vehicle inspection. Below is an introduction to handling problematic catalytic converters: 1. Common Issue: 'Catalytic converter' clogging is a widespread problem, especially in cities with heavy traffic congestion and regions with poor fuel quality, where this issue is particularly prominent. 2. Hazards of Clogging: A clogged 'catalytic converter' not only significantly increases vehicle fuel consumption, reduces power, and causes exhaust emissions to exceed standards but, more seriously, can cause the exhaust pipe to overheat and potentially lead to vehicle fires. 3. Repair Methods: For a long time, auto repair shops have lacked effective prevention and treatment methods for 'catalytic converter' clogging. Therefore, the recommended approach for a clogged 'catalytic converter' is replacement.
Was this review help?
20
0
Share
DelHeidi
08/12/25 9:06am
Replacing the catalytic converter core isn't a new topic, but I need to tell the truth. From a professional perspective, the converter consists of a housing and a ceramic core substrate coated with catalysts to purify exhaust gases. Modern vehicle models are basically designed with an integrated structure where the core isn't removable. Forcibly disassembling it carries significant risks: it's easy to break the ceramic substrate or affect catalyst uniformity, leading to excessive emissions or even gas leaks. Repair shops generally don't offer core replacement services because it requires specialized tools and is time-consuming. Replacing the entire catalytic converter is more reliable and straightforward, and doesn't cost much more. My advice is, if you encounter catalytic converter failure, don't bother with the core—check other exhaust system issues like sensors or leaks first, then replace the entire unit. This approach is safer, meets environmental standards, and eliminates potential hazards.
Was this review help?
7
5
Share
Expand All
More Forum Discussions

BYD Han: Should I Use 95 or 92 Octane Gasoline?

According to the official vehicle manual recommendation, the BYD Han should use 92 octane gasoline. In addition to checking the suitable gasoline grade in the vehicle manual, the BYD Han's fuel cap also indicates the recommended octane rating. Generally, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with a compression ratio between 8.6-9.9 should use 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95 octane gasoline. If the compression ratio is even higher, 98 octane gasoline is recommended. However, with the application of new technologies, the compression ratio alone cannot determine the gasoline grade—high compression ratio engines can also be tuned to use lower octane gasoline. This is because, besides the compression ratio, other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline octane rating, the higher the octane number and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the BYD Han occasionally uses the wrong gasoline grade, simply switching back to the correct grade after consumption is sufficient. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended to use lower octane gasoline, using a higher octane grade will not cause damage, but the increased octane number may alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces the engine's power output and thermal efficiency, resulting in poorer performance. For vehicles recommended to use higher octane gasoline, using a lower octane grade can cause engine knocking. Due to the significantly lower octane number, the gasoline's ignition point decreases, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance will arise during the upward stroke. This resistance makes the engine run very unstably. Mild knocking may only increase noise without significant engine damage, but severe knocking indicates serious engine issues. The vibrations not only affect driving stability but also cause abnormal wear on pistons and cylinders, potentially leading to cylinder scoring in severe cases.
13
2
Share

Where to Find BMW PIN Code?

BMW PIN code can be obtained by consulting the corresponding 4S dealership based on your specific vehicle model. Here is relevant information about the vehicle PIN code: 1. The vehicle's PIN code is generated from the car's identification number, the 17-digit VIN (which contains manufacturer information and vehicle details). Only the manufacturer can calculate it, and each vehicle corresponds to only one unique 8-digit PIN code. 2. As the production identification code of the car, the PIN code primarily ensures the vehicle's security. It is required for programming car keys.
20
4
Share

What Are the Possible Causes of Vibration After Installing New Tires?

Here are several reasons for car vibration after installing new tires: 1. Improper wheel alignment and balancing: If there is slight vibration after installing new tires, it is usually caused by improper wheel alignment and balancing. In this case, you can contact the 4S shop as soon as possible to have it redone. 2. Deformed tire rims: If there is severe body vibration after installing new tires, it is likely caused by deformed tire rims. In this case, you should promptly visit a 4S shop for inspection and replace the tire rims with higher-quality ones, otherwise it may lead to traffic accidents.
12
2
Share

What is the difference between an automatic and manual transmission driver's license?

The differences between an automatic and manual transmission driver's license are as follows: 1. Different permitted vehicle types: An automatic transmission license permits driving small and micro automatic passenger vehicles, as well as light and micro automatic cargo vehicles; a manual transmission license permits driving small and micro passenger vehicles, light and micro cargo vehicles, and also light and micro specialized operation vehicles. 2. Different permissions for other vehicle types: Holding a manual transmission license allows driving automatic transmission vehicles, but holding an automatic transmission license does not permit driving manual transmission vehicles. 3. Different codes: The permitted vehicle type code for a manual transmission license is "C1," while the code for an automatic transmission license is "C2."
1
3
Share

What are the differences between D trains and G trains?

Here are the differences between D trains and G trains: 1. Speed: D trains are electric multiple unit (EMU) trains with speeds around 200 km/h, while G trains are high-speed rail trains operating at approximately 300 km/h. 2. Ticket price: D trains (EMU trains) have relatively lower fares compared to G trains (high-speed rail). 3. Track usage: EMU trains can operate on existing railway lines (their signal systems are compatible with conventional tracks), whereas high-speed rail trains must run on newly-built passenger-dedicated lines (their signal systems are incompatible with conventional tracks).
20
3
Share

What does acceleration g-value mean?

Acceleration g-value is the unit of gravitational acceleration, with a value of approximately 10 meters per second squared. Here is some relevant information about vehicle speed: 1. Vehicle travel speed: Vehicle travel speed refers to the distance a vehicle travels per unit of time, simply referred to as speed, commonly measured in kilometers per hour or meters per second. 2. Vehicle operating speed: Vehicle operating speed is the average speed during the total duty time of a vehicle (including driving time and stopping time). It is an important indicator for measuring vehicle usage efficiency and transportation efficiency. Its level depends on the vehicle's average technical speed (average speed during driving time) and the amount of stopping time.
4
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.