why does my Ford Mustang S650 (2024-Present) engine light stay on

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, screwdrivers, multimeter, torque wrench
• Ensure the vehicle is parked on a level surface and the engine is off. Disconnect the battery before beginning work to ensure safety.

2. Addressing Error Codes

• Sub-steps:
  • Connect the OBD-II scanner to the vehicle's diagnostic port.
  • Retrieve and document the error codes.
  • Research the codes to determine the specific issues (e.g., P0420 for catalytic converter efficiency).

3. Inspect and Replace Components

• Sub-steps:
  • For issues related to spark plugs or ignition coils:
    • Remove the engine cover if necessary.
    • Disconnect the ignition coils and remove them using a socket.
    • Replace any faulty spark plugs and coils with new components, ensuring the correct gap is set for spark plugs.
  • For air filter replacement:
    • Open the air filter housing and remove the old filter.
    • Install a new air filter, ensuring it is seated correctly.

4. Testing and Replacing the Gas Cap

• Sub-steps:
  • Remove the gas cap and inspect the seal for damage; replace if necessary.
  • Reinstall the gas cap and ensure it clicks into place firmly.

5. Final Inspection

• Sub-steps:
  • Reconnect the battery and start the engine.
  • Allow the engine to reach operating temperature and observe for any abnormal noises or signs of leaks.