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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle’s battery to ensure safety.
• Allow the engine to cool down.

2. Inspect and Replace Spark Plug

• Remove the engine cover if applicable.
• Use a spark plug socket to remove the spark plug from cylinder 1.
• Inspect the spark plug for fouling or wear. Replace it if necessary.
• Torque the new spark plug to manufacturer specifications (typically around 15 lb-ft).

3. Check and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil on cylinder 1.
• Remove the ignition coil using a socket set.
• Inspect for cracks or damage. Replace if faulty.
• Install the new ignition coil and reconnect the electrical connector.

4. Test and Clean Fuel Injector

• Disconnect the fuel injector connector for cylinder 1.
• Use a multimeter to test the injector for proper resistance (typically 12-16 ohms).
• If faulty, replace the injector.
• If functioning, clean the injector using a fuel injector cleaner.

5. Inspect for Vacuum Leaks

• Visually inspect the intake manifold and vacuum hoses for any cracks or disconnections.
• Use a smoke machine or carburetor cleaner to detect leaks.
• Repair any leaks found.

6. Compression Test (if necessary)

• Remove the spark plug from cylinder 1.
• Insert a compression gauge into the spark plug hole.
• Crank the engine and note the compression reading. Compare to manufacturer specifications (typically 100-150 psi).
• If compression is low, further investigation may be needed for internal engine issues.