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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, gap gauge.
• Remove the ignition coil on cylinder 1.
• Extract the spark plug using a spark plug socket.
• Inspect the spark plug for wear, fouling, or damage; replace if necessary.
• Ensure the new spark plug is gapped correctly (usually 0.030-0.035 inches).
• Install the spark plug by hand, then torque to the manufacturer's specification (typically around 15 lb-ft).
• Reinstall the ignition coil.

3. Test and Replace Ignition Coil (if needed)

• Tools Required: Socket set.
• If the spark plug is fine, test the ignition coil with a multimeter according to the specifications in the service manual.
• If the coil is faulty, remove it and replace it with a new one, ensuring it is securely connected.

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaner tool or cleaning kit.
• Disconnect the fuel injector harness and remove the fuel line (use a rag to catch any spills).
• Remove the fuel injector from cylinder 1 and inspect it for clogs.
• Clean the injector using a fuel injector cleaner kit or replace it if necessary.
• Reinstall the injector and reconnect the fuel line and harness.

5. Verify Repair

• Tools Required: OBD-II scanner.
• Reconnect the battery.
• Start the engine and check for any remaining codes.
• Clear the P0301 code from the system and take the vehicle for a test drive to ensure the issue is resolved.