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 prevent electrical shock.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, dielectric grease
• Remove the ignition coil from cylinder 2.
• Use the spark plug socket to remove the spark plug.
• Inspect the spark plug for signs of wear, carbon deposits, or damage.
• If necessary, replace the spark plug with a new one, ensuring it is gapped correctly.
• Apply dielectric grease to the boot of the ignition coil before reinstalling.

3. Test and Replace Ignition Coil

• Tools Required: Multimeter
• Reconnect the ignition coil and check for resistance using a multimeter.
• If the ignition coil is faulty, remove it and replace it with a new one, torquing it to the manufacturer’s specifications.

4. Check Compression

• Tools Required: Compression tester
• Remove the spark plug from cylinder 2 and install the compression tester.
• Crank the engine and record the compression reading.
• If the compression is low, further engine diagnostics may be necessary (e.g., checking for valve issues).

5. Inspect Fuel Injector

• Tools Required: Fuel injector cleaner, O-ring replacement kit (if necessary)
• Disconnect the fuel injector connector for cylinder 2.
• Check for proper operation by applying voltage directly to the injector (if safe).
• If it is clogged, use a fuel injector cleaner or replace the injector as needed.