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

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to prevent accidental electrical shorts.
• Allow the engine to cool down if it was recently running.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket, gap gauge.
• Remove the ignition coil from cylinder 1 by unbolting it and disconnecting the electrical connector.
• Remove the spark plug using the spark plug socket.
• Inspect the spark plug for wear; if necessary, replace it with a new spark plug, ensuring it is gapped to specifications (check manufacturer’s recommendations).
• Reinstall the spark plug and torque it to the manufacturer-recommended specification (typically around 13-15 lb-ft).

3. Inspect and Replace Ignition Coil

• Tools Required: Socket set.
• If the spark plug is in good condition, test or replace the ignition coil for cylinder 1.
• Remove the coil and inspect for cracks or carbon tracking.
• Install a new ignition coil if necessary; ensure it is seated properly and reconnect the electrical connector.

4. Check Fuel Injector

• Tools Required: Noid light or stethoscope.
• Use a noid light to check the electrical signal to the fuel injector; if the light does not flash, replace the injector.
• If using a stethoscope, listen for clicking. If there’s no sound, replace the injector.
• If the injector is faulty, replace it and ensure proper installation.

5. Verify Engine Compression

• Tools Required: Compression tester.
• Remove the spark plug and insert the compression tester into the cylinder.
• Crank the engine and record the compression reading; it should be within manufacturer specifications.
• If compression is low, further inspection of the engine may be necessary.