how to fix a catalytic converter issue on my Honda Accord Eleventh Generation (2023-present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shocks.
• Allow the exhaust system to cool before starting work.

2. Remove the Catalytic Converter

• Tools Required: Socket set, ratchet, extension, penetrating oil (if necessary)
• If the bolts are rusted, apply penetrating oil and let it sit for several minutes.
• Use the socket set to remove the bolts securing the catalytic converter to the exhaust pipe and the exhaust manifold.
• Carefully lower the catalytic converter from its mounted position.

3. Inspect and Replace

• Inspect the catalytic converter for internal damage or clogging. If damaged or clogged, proceed to replacement.
• Tools Required: Torque wrench
• Install the new catalytic converter in the reverse order of removal, ensuring all gaskets are intact.
• Torque the bolts to the manufacturer's specifications (consult service manual for specific torque values).

4. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and allow it to reach operating temperature while checking for leaks in the exhaust system.
• Monitor the exhaust emissions and ensure the check engine light is off.