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

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. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 1.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear or fouling.
• If necessary, replace with a new spark plug, ensuring the correct gap as specified by the manufacturer (typically around 0.030-0.035 inches).
• Torque the new spark plug to the manufacturer's specification (usually about 13-15 lb-ft).

3. Check and Replace Ignition Coil

• Tools Required: Socket set, ratchet.
• If the ignition coil is suspected to be faulty, disconnect its electrical connector.
• Remove the ignition coil from cylinder 1.
• Test the ignition coil with a multimeter; it should show resistance within the specified range (consult service manual for exact values).
• If faulty, install a new ignition coil and reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit or professional injector cleaner.
• Disconnect the fuel injector connector from cylinder 1.
• Remove the fuel injector using the appropriate socket.
• Inspect the injector for clogs or damage.
• Clean the injector using a fuel injector cleaner or replace it if necessary.
• Reinstall the fuel injector and reconnect the connector.

5. Check for Vacuum Leaks

• Visually inspect all vacuum lines connected to the intake manifold.
• Use a smoke machine or carburetor cleaner to check for leaks while the engine is running.
• Repair or replace any damaged vacuum hoses.