how can I fix the P0301 misfire code in my Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shock.
• Allow the engine to cool down if it has been running.

2. Remove Spark Plug

• Use a spark plug socket and ratchet to remove the spark plug from cylinder 1.
• Inspect the spark plug for fouling, wear, or damage.
• If damaged, replace with a new spark plug, ensuring it matches OEM specifications (typically Motorcraft SP-534).

3. Inspect and Replace Ignition Coil

• Remove the ignition coil from cylinder 1 by unscrewing any retaining bolts.
• Inspect the ignition coil for cracks or carbon tracking.
• Replace with a new ignition coil if necessary (OEM part recommended).

4. Check Fuel Injector

• Disconnect the electrical connector from the fuel injector on cylinder 1.
• Use a multimeter to test for proper resistance (usually around 12-16 ohms for most injectors).
• Clean or replace the fuel injector if it is clogged or faulty.

5. Perform Compression Test

• Use a compression tester to check the compression in cylinder 1.
• Compare the reading to manufacturer specifications (typically around 150-200 psi).
• If compression is low, further investigation into piston rings or valves may be required.

6. Reassemble and Reconnect

• Reinstall the spark plug and ignition coil.
• Reconnect the negative battery terminal.
• Ensure all electrical connectors and vacuum hoses are securely attached.