why does my Ford Mustang S650 (2024-Present) engine light come on intermittently?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a flat surface and the engine has cooled down.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Faulty Components

• Ignition System:

  1. Remove the engine cover if applicable.
  2. Unscrew and remove the spark plugs using a spark plug socket.
  3. Inspect the spark plugs for wear; replace if necessary with OEM parts.
  4. Check ignition coils for cracks or damage and replace if needed.

• Air Filter:

  1. Open the air intake assembly by removing the clamps or screws.
  2. Take out the old air filter and inspect the housing for debris.
  3. Install a new air filter, ensuring it fits snugly, then reassemble the air intake.

• Fuel System:

  1. Connect a fuel pressure gauge to the fuel rail service port.
  2. Turn on the ignition (do not start the engine) and check the pressure against specifications.
  3. If pressure is low, inspect the fuel pump and filter for blockages or failures.

3. Reassemble and Reset

• Reconnect the negative battery terminal.
• Clear any stored trouble codes using the OBD-II scanner.
• Start the engine and allow it to idle for several minutes, checking for any warning lights.