how to fix the P0301 code on my Ford Explorer Fifth Generation (2011-2019)

Solution

1. Preparation

• Gather the necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety while working on electrical components.
• Allow the engine to cool down before starting any work.

2. Replace Spark Plug (if faulty)

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Instructions:
  1. Remove the ignition coil from cylinder 1 by unbolting it and disconnecting the electrical connector.
  2. Use the spark plug socket to carefully remove the old spark plug from the cylinder head.
  3. Inspect the spark plug tube and clean if necessary.
  4. Gap the new spark plug according to manufacturer specifications (typically around 0.040 inches).
  5. Install the new spark plug, tightening it to the manufacturer's torque specification (usually around 13-20 ft-lbs).
  6. Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if faulty)

• Tools Required: Socket set, ratchet.
• Instructions:
  1. Disconnect the negative battery terminal.
  2. Remove the ignition coil from cylinder 1 by unscrewing the bolts and disconnecting the electrical connector.
  3. Install the new ignition coil for cylinder 1 and secure it with bolts.
  4. Reconnect the electrical connector and ensure it's seated properly.

4. Check/Replace Fuel Injector (if faulty)

• Tools Required: Fuel injector removal tool, socket set.
• Instructions:
  1. Relieve the fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
  2. Disconnect the fuel injector electrical connector for cylinder 1.
  3. Remove the fuel rail if necessary and then take out the fuel injector.
  4. Inspect the injector for clogs or damage; replace with a new injector if needed.
  5. Reinstall the fuel injector and reconnect the electrical connector.