how to fix the P0301 code in my 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 down completely before starting work.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 1 by unscrewing the retaining bolt and disconnecting the electrical connector.
• Remove the spark plug using the spark plug socket and ratchet.
• Inspect the spark plug for wear; if damaged or fouled, replace it with a new one, ensuring it has the correct gap as specified in the owner's manual.
• Reinstall the spark plug and torque it to the manufacturer’s specifications (typically around 13-15 lb-ft).

3. Check and Replace Ignition Coil

• If the spark plug is in good condition, proceed to inspect the ignition coil.
• Tools Required: Ratchet, socket set.
• Remove the ignition coil from cylinder 1.
• Inspect for cracks or carbon tracking; if faulty, replace it with a new ignition coil.
• Reinstall the ignition coil and ensure it is securely connected.

4. Test and Replace Fuel Injector (if necessary)

• If the misfire persists, check the fuel injector for cylinder 1.
• Tools Required: Fuel injector puller, multimeter.
• Disconnect the fuel injector connector and use a multimeter to test for resistance; compare with specifications.
• If the injector is faulty, remove it using the injector puller and replace it with a new one.
• Reconnect the fuel injector and connector securely.