why does my Honda Civic 9th Generation (2012-2015) stall when I come to a stop

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.

2. Clean the Throttle Body

• Tools Required: Throttle body cleaner, soft cloth, and screwdriver.
• Disconnect the negative battery terminal.
• Remove the intake duct connected to the throttle body using a screwdriver.
• Spray throttle body cleaner onto a soft cloth and wipe the inside of the throttle body until clean.
• Reconnect the intake duct and tighten the screws.

3. Inspect and Clean the Idle Air Control Valve (IACV)

• Tools Required: Socket set and cleaning solvent.
• Locate the IACV, usually near the throttle body.
• Remove the IACV from its mounting using a socket.
• Clean the valve and its passage with cleaning solvent.
• Reinstall the IACV and reconnect any electrical connectors.

4. Check and Replace Fuel Filter (if necessary)

• Tools Required: Fuel line disconnect tool, socket set, and a new fuel filter.
• Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
• Disconnect the fuel lines from the old fuel filter using the fuel line disconnect tool.
• Install the new fuel filter in the correct orientation.
• Reconnect the fuel lines securely.

5. Inspect for Vacuum Leaks

• Tools Required: Vacuum gauge or smoke machine (optional).
• Visually inspect all vacuum hoses for cracks or disconnections.
• If using a vacuum gauge, connect it to the intake manifold and check for proper readings.
• Repair or replace any damaged hoses found.

6. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and allow it to idle.
• Check for any warning lights on the dashboard and ensure the engine runs smoothly.