how to fix P0302 misfire code on Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to avoid electrical shorts.

2. Replace Spark Plug

• Tools Needed: Socket set, torque wrench.
• Remove the engine cover (if applicable) to access the spark plug.
• Use a socket to remove the spark plug from cylinder 2.
• Inspect the old spark plug for wear; replace with a new one if necessary.
• Torque the new spark plug to the manufacturer's specifications (usually around 12-15 lb-ft).
• Reinstall the engine cover.

3. Replace Ignition Coil

• Tools Needed: Socket set.
• Disconnect the electrical connector from the ignition coil on cylinder 2.
• Remove the mounting bolts securing the ignition coil.
• Replace with a new ignition coil, ensuring it is seated properly.
• Reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

• Tools Needed: Fuel injector cleaner, basic hand tools.
• Disconnect the fuel injector connector on cylinder 2.
• Remove the fuel rail if necessary to access the injector.
• Clean the fuel injector using a fuel injector cleaning kit or replace it if it is faulty.
• Reassemble the fuel rail and reconnect the injector.

5. Compression Test (if needed)

• Tools Needed: Compression tester.
• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression readings.
• Compare the readings with the manufacturer's specifications.