how to fix Ram 1500 DT (2019-Present) engine misfire P0302 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the engine to cool down before beginning work.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, torque wrench.
• Remove the ignition coil from cylinder 2.
• Unscrew the spark plug using a spark plug socket and ratchet.
• Inspect the spark plug for wear, carbon buildup, or damage; replace if necessary.
• Install the new spark plug and torque to the manufacturer's specification (typically around 13-15 lb-ft).
• Reinstall the ignition coil securely.

3. Test and Replace Ignition Coil (if necessary)

• Tools Required: Multimeter, socket set.
• Using a multimeter, check the resistance of the ignition coil. Compare with manufacturer specifications.
• If the coil is out of range, remove it and replace it with a new component.
• Reconnect the wiring harness securely after replacement.

4. Fuel Injector Inspection and Cleaning/Replacement

• Tools Required: Injector cleaning kit, socket set.
• Remove the fuel injector from cylinder 2.
• Inspect for clogs or damage; clean if recommended or replace it if necessary.
• Reinstall the fuel injector ensuring proper seating.

5. Final Assembly

• Reconnect any electrical connectors and the negative battery terminal.
• Ensure all components are securely fitted and there are no loose connections.