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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety during repairs.
• Allow the engine to cool down before starting any work.

2. Replace Spark Plug and Ignition Coil

1. Remove Engine Cover (if applicable)

   • Use a socket set to remove any bolts securing the engine cover.
   • Gently lift off the cover to access the ignition components.

2. Remove Ignition Coil

   • Disconnect the electrical connector from the ignition coil in cylinder 2.
   • Remove the bolt securing the ignition coil using a socket.
   • Carefully pull the ignition coil out of the spark plug well.

3. Replace Spark Plug

   • Use a spark plug socket to remove the spark plug from cylinder 2.
   • Inspect the old spark plug for damage or excessive wear.
   • Install a new spark plug, ensuring it is gapped correctly per manufacturer specifications.
   • Tighten the spark plug to the recommended torque (usually around 13 lb-ft).

4. Install New Ignition Coil

   • Insert the new ignition coil into the spark plug well.
   • Secure it with the retaining bolt and reconnect the electrical connector.

3. Test Fuel Injector

1. Check Fuel Injector Operation

   • Use a noid light to check for signal at the fuel injector connector while cranking the engine.
   • If no signal is present, further diagnose the injector wiring or PCM.

2. Replace Fuel Injector (if necessary)

   • Remove the fuel rail to access the fuel injector.
   • Detach the fuel line and remove the retaining clips.
   • Replace the faulty injector and reassemble the fuel rail.

4. Reassemble and Test

• Reinstall the engine cover if removed.
• Reconnect the battery.
• Start the engine and allow it to idle to ensure smooth operation.