what does it mean if my Ford F-150 Fourteenth Generation (2021-present) has a P0302 code

Solution

1. Preparation

• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shock.
• Gather necessary tools and parts, and have them within reach.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 2 by unscrewing it and gently lifting it off the spark plug.
• Take out the spark plug using the spark plug socket.
• Inspect the spark plug for wear or deposits; replace it if it’s damaged or fouled.
• Install the new spark plug and torque it to the manufacturer’s specifications (typically 13-15 lb-ft).
• Reattach the ignition coil to cylinder 2.

3. Test and Replace Ignition Coil (if necessary)

• If the spark plug is fine, test the ignition coil using a multimeter to check for proper resistance.
• If the coil is faulty, remove it and replace it with a new ignition coil.
• Reconnect the ignition coil and ensure it is seated properly.

4. Check and Replace Fuel Injector (if necessary)

• Use a noid light to check the injector pulse at the connector for cylinder 2.
• If no pulse is detected, inspect the wiring and connectors, replacing any damaged parts.
• If the injector is faulty, remove the fuel rail to access the injector for cylinder 2.
• Replace the injector and ensure all seals are properly seated before reassembly.

5. Perform Compression Test

• Connect a compression gauge to the spark plug hole of cylinder 2.
• Crank the engine and record the compression reading.
• If the compression is low, further investigation into valve issues or head gasket leaks may be necessary.