my Honda Civic 9th Generation (2012-2015) stalls when I come to a stop, what should I check?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.
• Allow the engine to cool down.

2. Clean the Throttle Body

• Remove the air intake duct from the throttle body.
• Use throttle body cleaner and a soft cloth to clean the throttle plate and surrounding areas.
• Ensure no cleaner enters the intake manifold.

3. Inspect and Clean the IAC Valve

• Locate the IAC valve, usually mounted on the throttle body or intake manifold.
• Disconnect the electrical connector and remove the IAC valve.
• Clean the valve and its passages with an appropriate cleaner. Ensure the pintle moves freely.
• Reinstall the IAC valve and reconnect the electrical connector.

4. Test and Replace the Fuel Filter (if necessary)

• Locate the fuel filter (usually near the fuel tank or along the fuel line).
• Check for any clogs or restrictions by disconnecting the lines and inspecting flow.
• Replace the fuel filter if it appears clogged; ensure to use a filter compatible with the Honda Civic.

5. Clean or Replace the MAF Sensor

• Locate the MAF sensor in the air intake path.
• Disconnect the electrical connector and remove the sensor.
• Use MAF sensor cleaner to spray the sensing element; avoid touching it.
• Reinstall the MAF sensor and reconnect the connector.

6. Reconnect Battery and Reset Codes

• Reconnect the battery.
• Clear any error codes using the OBD-II scanner.
• Start the engine and allow it to idle for a few minutes to ensure everything is functioning correctly.