why does my Ford Mustang S650 (2024-Present) exhaust smell like gas?

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Fuel Injectors

• Sub-steps:
  1. Remove the engine cover if applicable.
  2. Disconnect the fuel lines from the fuel injectors using a fuel line disconnect tool.
  3. Unplug the electrical connectors from the fuel injectors.
  4. Remove the fuel rail bolts and carefully lift the fuel rail with the injectors attached.
  5. Inspect the O-rings on the injectors for damage; replace if necessary.
  6. Install new or reconditioned fuel injectors, ensuring proper seating.
  7. Reassemble the fuel rail and reconnect the fuel lines and electrical connectors.

3. Check and Adjust Fuel Pressure

• Sub-steps:
  1. Install the fuel pressure gauge onto the fuel rail's test port.
  2. Turn the ignition to the "On" position (do not start the engine) and check the pressure reading.
  3. Compare the reading with manufacturer specifications; adjust or replace the fuel pressure regulator if necessary.
  4. Remove the fuel pressure gauge and reattach the test port cap.

4. Inspect and Replace Spark Plugs

• Sub-steps:
  1. Remove the ignition coils by unscrewing the retaining bolts and disconnecting the electrical connectors.
  2. Remove the spark plugs using a spark plug socket and ratchet.
  3. Inspect the spark plugs for signs of fouling or wear; replace with OEM specifications if needed.
  4. Reinstall the spark plugs and ignition coils, ensuring proper torque.

5. Reconnect Battery and Test

• Reconnect the battery terminals.
• Start the engine and allow it to reach operating temperature.