how to fix P0302 code on Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety while working on the vehicle.

2. Inspect and Replace Spark Plug

1. Locate the spark plug for cylinder #2 (usually the second plug from the front on the passenger side).
2. Remove the ignition coil by unscrewing the bolts and disconnecting the electrical connector.
3. Use a spark plug socket and ratchet to remove the spark plug.
4. Inspect the spark plug for damage or excessive wear; replace if necessary.
5. Install a new spark plug (gapping to manufacturer specifications, typically around 0.054 inches).
6. Reinstall the ignition coil and reconnect the electrical connector.

3. Check and Replace Ignition Coil

1. If the spark plug is in good condition, test the ignition coil using a multimeter (check resistance according to specifications).
2. If faulty, remove the ignition coil and replace it with a new one.
3. Reconnect all wiring and ensure the coil is firmly seated.

4. Test Fuel Injector

1. If the ignition components are fine, check the fuel injector functionality.
2. Disconnect the fuel injector connector and use a noid light to test for signal.
3. If there’s no signal, trace wiring back to the ECM; if the injector is faulty, replace it.
4. If necessary, clean the fuel injector with a suitable cleaning kit or replace it.

5. Reassemble and Reconnect Battery

• Ensure all components are securely installed.
• Reconnect the negative battery terminal.