why does my Honda Civic 10th Generation (2016-2021) emit a strange smell when driving

Solution

1. Preparation

• Gather tools and parts needed for inspection and potential replacement.
• Tools required: Socket set, screwdrivers, OBD-II scanner, coolant pressure tester.
• Park the vehicle on a level surface and ensure the engine is cool.

2. Inspect and Replace Cabin Air Filter

• Remove the cabin air filter cover (may require a screwdriver).
• Take out the old cabin air filter and check for dirt or odor.
• Replace with a new cabin air filter if contaminated.
• Reinstall the cover securely.

3. Check for Fluid Leaks

• Use a coolant pressure tester to check for leaks in the cooling system.
• Inspect oil and transmission fluid levels; top off or replace as necessary.
• Wipe down any spilled fluids on the engine components to avoid burning smells.

4. Exhaust System Inspection

• Inspect the exhaust manifold and piping for leaks or damage.
• If damage is found, replace the affected components (e.g., gaskets, pipes).
• Ensure all connections are tight and secure.

5. Catalytic Converter Assessment

• Inspect the catalytic converter for signs of cracks or overheating.
• If the catalytic converter is damaged, replace it according to manufacturer specifications.
• Ensure to check the oxygen sensors as they can affect catalytic converter operation.