how to fix the P0302 code on my Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

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

2. Replace Spark Plug in Cylinder 2

• Tools Required: Socket set, torque wrench, spark plug socket, dielectric grease.
• Remove the ignition coil cover to access the spark plug.
• Use the spark plug socket to remove the old spark plug from cylinder 2.
• Inspect the old spark plug for wear or fouling; ensure to compare it with OEM specifications.
• Apply a small amount of dielectric grease to the new spark plug's threads.
• Install the new spark plug and torque it to the manufacturer's specifications (typically around 12-15 ft-lbs).
• Reattach the ignition coil securely.

3. Replace Ignition Coil for Cylinder 2

• Tools Required: Socket set, torque wrench.
• Disconnect the electrical connector from the ignition coil.
• Remove the mounting bolts securing the ignition coil.
• Install the new ignition coil and secure it with the mounting bolts; torque them according to specifications.
• Reconnect the electrical connector.

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit, safety goggles, gloves.
• Disconnect the fuel line and electrical connector from the fuel injector for cylinder 2.
• Remove the fuel injector from its rail.
• Clean the fuel injector using a cleaning kit or replace it if found defective.
• Reinstall the fuel injector, ensuring proper seating and secure connections.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use an OBD-II scanner to clear the P0302 code from the vehicle’s memory.