what does it mean if my Ford Mustang S650 (2024-Present) check engine light is on?

Solution

1. Preparation

• Gather tools such as an OBD-II scanner, socket set, and multimeter.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the engine to cool down before working on any components.

2. Address Error Codes

• Use the OBD-II scanner to retrieve and document the trouble codes.
• Research the codes to understand the underlying issues (e.g., P0300 for random misfire, P0420 for catalytic converter efficiency).

3. Inspect and Repair Components

• Fuel System:
  • Check fuel lines for leaks and inspect the fuel injector for clogs.
  • If faulty, replace the fuel injector and clear the codes.
• Ignition System:
  • Inspect spark plugs and ignition coils for wear.
  • Replace any worn spark plugs or coils and clear the codes.
• Sensor Check:
  • Inspect and test critical sensors (MAF sensor, O2 sensors) using a multimeter for proper voltage and resistance.
  • Replace any faulty sensors identified during testing.

4. Reassemble and Test

• Reconnect any components and the negative battery terminal.
• Clear any trouble codes using the OBD-II scanner.
• Start the engine and monitor for any abnormal sounds or issues.