how to fix a malfunctioning catalytic converter in my Toyota Camry Eighth Generation (2018-present)

Solution

1. Preparation

• Gather tools and replacement parts.
• Disconnect the battery to prevent electrical shorts.
• Raise the vehicle securely on jack stands.

2. Remove the Exhaust Components

• Sub-steps:
  1. Locate the catalytic converter and surrounding exhaust components.
  2. Use a socket set to remove the bolts connecting the exhaust pipe to the catalytic converter.
  3. Detach any hangers supporting the exhaust system.
  4. Carefully slide the catalytic converter out of the exhaust system.

3. Inspect and Clean

• Sub-steps:
  1. Inspect the catalytic converter for physical damage or excessive soot buildup.
  2. If the unit is reusable, clean it with a suitable catalytic converter cleaner according to the manufacturer's instructions.
  3. Check the surrounding exhaust pipes for clogs and clean if necessary.

4. Install New or Repaired Catalytic Converter

• Sub-steps:
  1. If replacing, position the new catalytic converter in place.
  2. Align the exhaust pipe and install new gaskets if required.
  3. Torque the bolts to the manufacturer’s specifications (typically around 30-40 ft-lbs).
  4. Reattach the exhaust hangers securely.

5. Reconnect Battery and Test

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Start the engine and allow it to reach operating temperature.
  3. Check for leaks around the exhaust connections.