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

Solution

1. Preparation

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

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 2 by unscrewing the retaining bolts.
• Disconnect the electrical connector from the ignition coil.
• Remove the spark plug using a socket wrench. Inspect for signs of wear or fouling.
• If damaged, replace with a new spark plug, ensuring it is gapped to manufacturer specifications (refer to the owner’s manual).
• Reinstall the ignition coil, reconnect the electrical connector, and torque the bolts to specifications.

3. Check and Replace Ignition Coil (if necessary)

• If the ignition coil was found to be faulty during diagnostics, remove it from cylinder 2.
• Install a new ignition coil by reversing the removal steps, ensuring all connections are secure.

4. Clean or Replace Fuel Injector

• If the fuel injector was found to be clogged, remove it from cylinder 2.
• Use a fuel injector cleaning kit to clean the injector or replace it with a new one if cleaning does not resolve the issue.
• Reinstall the fuel injector, ensuring proper seating and connection.

5. Compression Test

• If compression is low, consider further engine diagnostics for potential internal issues.
• If compression is adequate, reconnect all components, ensuring no leaks are present.