why is my Honda Civic 9th Generation (2012-2015) check engine light on after oil change

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery for safety.

2. OBD-II Code Reset

• Connect the OBD-II scanner to the vehicle’s diagnostic port.
• Clear any stored trouble codes, including the check engine light.
• Reconnect the battery.

3. Inspect and Tighten Components

• Recheck the oil drain plug:
  • Use a socket wrench to ensure it is tightly secured to the specified torque.
• Inspect the oil filter:
  • If loose, remove the oil filter, apply fresh oil to the rubber O-ring, and reinstall it securely.
• Check air intake connections:
  • Ensure all hoses and connections to the air intake system are secure and intact.

4. Test Drive

• Start the engine and allow it to idle for a few minutes.
• Take the vehicle for a test drive to see if the check engine light remains off during operation.