how to fix a rough idle on Honda CR-V Fifth Generation (2017-2022)

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to prevent any electrical shorts during work.

2. Clean or Replace Air Filter

• Remove the air filter cover using a socket set.
• Inspect the air filter; if dirty, replace it with a new one.
• Reinstall the air filter cover securely.

3. Throttle Body Cleaning

• Remove the throttle body by detaching the intake hose and electrical connectors.
• Use throttle body cleaner and a soft cloth to clean the interior of the throttle body.
• Reinstall the throttle body and reconnect all hoses and connectors.

4. Replace Spark Plugs

• Remove the ignition coil cover using a socket set.
• Disconnect the electrical connectors from the ignition coils.
• Remove the ignition coils and unscrew the spark plugs using a spark plug socket.
• Install new spark plugs with a torque specification of 13 lb-ft (18 Nm).
• Reattach the ignition coils and cover.

5. Inspect and Repair Vacuum Lines

• Visually inspect all vacuum lines for cracks or disconnections.
• Replace any damaged vacuum lines using the appropriate replacement parts.

6. Fuel System Cleaning (if necessary)

• If issues persist, consider using a fuel system cleaner according to the product instructions.
• Alternatively, replace the fuel filter if it hasn't been serviced per the maintenance schedule.