why does my Honda CR-V's engine light come on after filling up gas

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery for safety.

2. Inspect and Replace Fuel Cap

• Remove the fuel cap and inspect for damage or debris.
• Clean the sealing surface on the filler neck.
• If the cap is damaged, replace it with a new one according to the manufacturer's specifications.
• Reinstall the fuel cap, ensuring it clicks into place.

3. Inspect EVAP System

• Locate the EVAP canister and inspect for cracks or damage.
• Check all hoses connected to the EVAP system for leaks or disconnections.
• If a leak is found, replace the damaged component.

4. Test and Replace Purge Valve

• Disconnect the electrical connector from the purge valve.
• Using a multimeter, test the purge valve for continuity.
• If defective, remove the valve by unscrewing it from the intake manifold.
• Install the new purge valve and reconnect the electrical connector.

5. Reset Check Engine Light

• Reconnect the vehicle battery.
• Use the OBD-II scanner to clear any error codes.
• Verify that the check engine light is no longer illuminated.