why does my Ford F-150 14th Generation (2021-2024) keep throwing a P0301 code

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, dielectric grease.
• Remove the ignition coil from cylinder 1 by unbolting it and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear and replace if necessary (gap to manufacturer specifications).
• Apply dielectric grease to the ignition coil boot before reinstallation.

3. Inspect and Replace Ignition Coil

• If the spark plug is in good condition, test the ignition coil with an ohmmeter (resistance should be within manufacturer specifications).
• If faulty, replace the ignition coil with a new unit.
• Reinstall the ignition coil and connect the electrical connector securely.

4. Check and Clean Fuel Injector

• Remove the fuel rail if necessary to access the fuel injector for cylinder 1.
• Inspect the injector for clogs or leaks.
• Clean or replace the fuel injector based on the inspection results.
• Reinstall the fuel rail and ensure all connections are secure.

5. Perform Compression Test

• Remove the spark plug for cylinder 1.
• Insert the compression gauge into the spark plug hole.
• Crank the engine and record the compression reading; compare it to manufacturer specifications.
• If low compression is detected, consider further diagnostics for possible internal engine issues.