how to fix P0302 code in Ford F-150 12th Generation (2009-2014)

Solution

1. Preparation

• Gather tools and parts needed.
• Ensure the vehicle is parked on a level surface, the engine is cool, and the battery is disconnected.

2. Replace Spark Plug

• Remove the ignition coil from cylinder 2.
• Remove the spark plug using a spark plug socket and ratchet.
• Inspect the old spark plug for wear (replace if necessary).
• Install the new spark plug and torque to the manufacturer's specifications (typically around 13 lb-ft).

3. Replace Ignition Coil

• If the ignition coil is faulty, remove it from cylinder 2.
• Disconnect the electrical connector and unscrew the coil.
• Install the new ignition coil, securing it in place and reconnecting the electrical connector.

4. Inspect/Replace Fuel Injector

• If the fuel injector is not operating correctly, remove it from cylinder 2 (may require fuel line disconnection).
• Install a new fuel injector and reconnect the fuel line and electrical connector.
• Ensure proper seating in the intake manifold.

5. Reassemble and Test

• Reconnect the battery.
• Clear the error codes using the OBD-II scanner.
• Start the engine and allow it to reach operating temperature.
• Monitor engine performance for any misfire symptoms.