how to fix P0301 misfire code on Ford Explorer Sixth Generation (2020-present)

Solution

1. Preparation

• Gather tools and parts for the repair.
• Disconnect the battery to ensure safety while working on the electrical components.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 1.
  • Tools Required: Socket set, torque wrench
  • Safety Warning: Allow the engine to cool before working on spark plugs.
• Remove the spark plug from cylinder 1 using a spark plug socket.
• Inspect the spark plug for wear, cracks, or carbon buildup.
• If necessary, replace the spark plug with a new one, ensuring it matches the specifications (typically around 0.028-0.032 inches gap).
• Reinstall the ignition coil, making sure it is securely fastened.

3. Test and Replace Ignition Coil (if needed)

• If the spark plug is in good condition, test the ignition coil's resistance using a multimeter.
  • Refer to manufacturer specifications for acceptable resistance values.
• If the ignition coil is faulty, replace it with a new coil.
• Reconnect the ignition coil and ensure all connectors are secure.

4. Check Fuel Injector

• Using a fuel injector tester, check for proper operation of the fuel injector for cylinder 1.
• If the injector is faulty, remove and replace it with a new one.
  • Tools Required: Fuel injector removal tool, socket set
• Ensure all connections are secure upon reinstallation.

5. Final Assembly

• Reconnect the battery.
• Clear the error codes using the OBD-II scanner.