how to fix P0302 code on Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, compression gauge, socket set, torque wrench, and basic hand tools.
• Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 2:
  • Unplug the electrical connector from the ignition coil.
  • Remove the mounting bolts using the socket set.
• Remove the spark plug:
  • Use a spark plug socket to unscrew and remove the spark plug from cylinder 2.
• Inspect the spark plug for wear or damage and replace if necessary with a new OEM spark plug.
• Reinstall the new spark plug and torque it to the manufacturer's specifications (typically around 13-15 lb-ft).

3. Inspect and Replace Ignition Coil

• Check the ignition coil resistance:
  • If the resistance is out of specifications, replace the ignition coil.
• Install the new ignition coil:
  • Position the ignition coil over the spark plug.
  • Secure it with the mounting bolts and reconnect the electrical connector.

4. Inspect and Replace Fuel Injector

• Remove the fuel injector for cylinder 2:
  • Disconnect the fuel rail and remove any mounting clips.
  • Pull the fuel injector out of its seat.
• Inspect for clogging or damage; replace if necessary with an OEM fuel injector.
• Reinstall the fuel injector and reconnect the fuel rail.

5. Reassemble and Reconnect Battery

• Reconnect the battery terminals securely.
• Ensure all components are reinstalled correctly and there are no loose connections.