why does my Honda CR-V stall when idling at a red light

Solution

1. Preparation

• Gather tools and parts before starting the repair.
• Tools required: OBD-II scanner, socket set, torque wrench, fuel pressure gauge, cleaning supplies.
• Safety warnings: Disconnect the battery before working on electrical systems.

2. Clean the Throttle Body

• Remove the air intake duct by loosening the clamps with a socket wrench.
• Spray throttle body cleaner into the throttle body while opening the throttle plate manually.
• Wipe away carbon deposits with a clean cloth, ensuring no residue remains.
• Re-install the air intake duct and ensure all connections are secure.

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

• Locate the IAC valve, typically mounted on the throttle body.
• Disconnect the electrical connector and remove the mounting screws using a socket set.
• Clean the IAC valve with throttle body cleaner and inspect for damage.
• Reinstall the IAC valve and reconnect the electrical connector.

4. Check Fuel System

• Connect a fuel pressure gauge to the fuel rail to test fuel pressure.
• Compare the reading to the manufacturer’s specifications. If low, check the fuel pump and filter.
• Replace the fuel filter if needed, and ensure the fuel pump is functioning properly.

5. Inspect the Ignition System

• Remove the spark plugs using a socket wrench and inspect their condition.
• Replace any worn or fouled spark plugs with new ones, ensuring proper gap settings as per manufacturer’s specifications.
• Check ignition coils for proper operation and replace if faulty.