how to fix P0301 code in Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool before starting work.

2. Replace Spark Plug

• Tools Required: Socket set, spark plug socket, torque wrench, gap gauge
• Remove the ignition coil from cylinder 1 by unbolting it.
• Use a spark plug socket to remove the spark plug.
• Inspect the old spark plug for wear and ensure the gap is correct for the new spark plug.
• Install the new spark plug and torque it to the manufacturer's specification (usually around 13 lb-ft).
• Reinstall the ignition coil.

3. Test or Replace Ignition Coil

• Tools Required: Multimeter
• Disconnect the ignition coil connector and measure the resistance with a multimeter.
• If the resistance is outside of the specified range (consult service manual), replace the ignition coil.
• If functional, reconnect the ignition coil.

4. Inspect and Clean/Replace Fuel Injector

• Tools Required: Fuel injector cleaner (if cleaning), or new fuel injector, socket set
• Disconnect the fuel line and electrical connector from the fuel injector.
• Remove the fuel injector from cylinder 1.
• Clean the injector using a cleaning kit or replace it if necessary.
• Reinstall the injector, ensuring it seats properly.

5. Perform Compression Test

• Tools Required: Compression tester
• Remove the spark plug from cylinder 1.
• Insert the compression tester and crank the engine for several seconds.
• Record the compression reading; it should be within the manufacturer's specified range (consult service manual).
• If compression is low, further internal engine diagnostics may be necessary.