how to fix P0302 code on my Ford F-150 Fourteenth Generation (2021-present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, torque wrench, compression tester, multimeter, noid light.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Replace Spark Plug

• Remove the ignition coil from cylinder 2 by unscrewing the mounting bolts and disconnecting the electrical connector.
• Remove the spark plug using a spark plug socket and ratchet. Inspect for wear or carbon buildup.
• Install a new spark plug, ensuring it is gapped correctly according to manufacturer specifications.
• Torque the spark plug to the recommended value (typically around 13-15 lb-ft).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if necessary)

• If the ignition coil showed signs of wear during inspection, remove it as described above.
• Install the new ignition coil by reversing the removal steps, ensuring it is securely mounted and connected.

4. Test Fuel Injector

• If a fuel injector issue is suspected, use a noid light to check for proper electrical signal.
• If the injector is faulty, remove it by disconnecting the fuel line and electrical connector, and unscrewing it from the intake manifold.
• Install the new fuel injector, ensuring it seals properly and reconnect the electrical connector.

5. Clear Codes and Reconnect Battery

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the codes from the vehicle's computer.