my Ram 1500 DT (2019-Present) has a P0302 code, what does that indicate

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to avoid electrical shorts.
• Allow the engine to cool before starting work.

2. Inspect and Replace Spark Plug

• Remove the ignition coil from cylinder 2.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for wear, carbon buildup, or damage.
• If damaged, replace with a new spark plug, ensuring it is gapped to specifications (typically 0.040 inches for most Ram 1500s).
• Reinstall the ignition coil.

3. Check and Replace Ignition Coil (if necessary)

• If the spark plug is in good condition but the misfire persists, remove the ignition coil for cylinder 2.
• Test the coil with a multimeter to ensure it is within manufacturer specifications.
• If faulty, replace the ignition coil with a new one.
• Reinstall the ignition coil securely.

4. Inspect and Replace Fuel Injector (if necessary)

• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel injector using a fuel injector puller.
• Visually inspect the injector for clogs or damage.
• If necessary, replace with a new fuel injector.
• Reinstall the fuel injector and reconnect the connector.

5. Reconnect Battery and Clear Codes

• Reconnect the battery.
• Use an OBD-II scanner to clear the P0302 code.
• Start the engine and monitor for any misfires.