how to fix P0301 code on Ford F-150 Fourteenth Generation (2021-present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Park the vehicle on a flat surface, engage the parking brake, and disconnect the negative battery terminal.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 1:
  1. Disconnect the electrical connector from the ignition coil.
  2. Unbolt the coil using a socket.
  3. Gently pull the coil out of the spark plug well.
• Remove the old spark plug:
  1. Use a spark plug socket to unscrew the old spark plug.
  2. Inspect the old spark plug for wear and carbon buildup.
• Install the new spark plug:
  1. Apply anti-seize compound on the threads of the new spark plug (if recommended).
  2. Thread the new spark plug by hand to avoid cross-threading, then use the torque wrench to tighten it to the manufacturer's specification (typically around 13-15 ft-lbs).
• Reinstall the ignition coil:
  1. Position the coil back into the spark plug well.
  2. Bolt it down and reconnect the electrical connector.

3. Inspect and Replace Ignition Coil (if necessary)

• If the ignition coil was found to be defective during inspection:
  1. Remove the old coil as described in the spark plug replacement step.
  2. Install the new ignition coil by reversing the removal steps.
  3. Ensure the electrical connector is securely attached.

4. Fuel Injector Testing (if necessary)

• If the injector is suspected to be faulty:
  1. Disconnect the fuel injector connector.
  2. Measure the resistance using a multimeter; compare it against specifications (typically 12-16 ohms).
  3. If out of spec, replace the injector:
     • Remove the fuel rail (if required) to access the injector.
     • Install the new fuel injector and reassemble the fuel rail as necessary.