my Ford F-150 14th Generation (2021-2024) has a check engine light with code P0301, what to do

Solution

1. Preparation

• Gather tools and parts before starting the repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket
• Remove the spark plug wire or coil pack connected to cylinder 1.
• Use the spark plug socket to remove the spark plug from cylinder 1.
• Inspect the spark plug for signs of wear or damage. Replace if necessary.
• Install the new spark plug, ensuring it is properly gapped to manufacturer specifications (typically around 0.030-0.040 inches).
• Torque the spark plug to the manufacturer's specified value (usually around 11-15 lb-ft).

3. Test and Replace Ignition Coil

• Tools Required: Socket set, multimeter (optional for testing)
• Remove the ignition coil from cylinder 1 by unscrewing it and disconnecting the electrical connector.
• Test the ignition coil using a multimeter if applicable, or replace it with a new one.
• Reinstall the ignition coil securely and reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit (if necessary), socket set
• Remove the fuel injector connected to cylinder 1.
• Inspect the injector for blockages or damage. Clean it using an appropriate cleaning solution or replace if necessary.
• Reinstall the fuel injector and ensure it is seated properly.

5. Check Compression

• Tools Required: Compression tester
• Remove the spark plug from cylinder 1 and install the compression tester.
• Crank the engine to obtain the compression reading. Compare it to the manufacturer's specifications (usually around 120-150 psi).
• If the compression is low, further diagnostics may be needed.