how to fix the rough idle on my Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather the tools and parts required.
• Disconnect the negative battery terminal to prevent electrical short circuits.
• Ensure the engine is cool before starting any work.

2. Inspect and Replace Spark Plugs

• Tools Required: Socket set, torque wrench, spark plug gap tool.
• Remove the ignition coils by unscrewing the bolts and disconnecting the electrical connectors.
• Remove the spark plugs using a spark plug socket.
• Inspect the spark plugs for wear; replace if necessary with OEM parts.
• Ensure that the gap is set to manufacturer specifications (typically 0.044 inches for Honda).
• Reinstall the spark plugs and ignition coils, torquing to manufacturer specifications (typically 13 lb-ft).

3. Clean the Throttle Body

• Tools Required: Throttle body cleaner, soft brush, clean rags.
• Remove the air intake duct to access the throttle body.
• Spray throttle body cleaner inside the throttle body and scrub gently with a soft brush.
• Wipe clean with a rag to remove carbon deposits.
• Reattach the air intake duct securely.

4. Inspect and Replace Fuel Filter

• Tools Required: Wrench set, fuel line disconnect tool, catch pan.
• Locate the fuel filter (usually along the fuel line).
• Relieve fuel pressure by removing the fuel pump relay and starting the engine until it stalls.
• Disconnect the fuel lines using a fuel line disconnect tool.
• Remove the old fuel filter and replace it with a new one, ensuring correct orientation.
• Reconnect the fuel lines and reinstall the fuel pump relay.

5. Check and Repair Vacuum Leaks

• Tools Required: Vacuum gauge, hose clamps.
• Inspect all vacuum lines for cracks or loose connections.
• Replace any damaged vacuum hoses.
• Use a vacuum gauge to test for proper readings and ensure that there are no leaks.