how to fix P0301 misfire code on Ram 1500 DT (2019-Present)

Solution

1. Preparation

• Gather all necessary tools and components.
• Disconnect the battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, ratchet.
• Remove the ignition coil from cylinder 1 by unbolting and disconnecting the electrical connector.
• Remove the old spark plug using the spark plug socket.
• Inspect the spark plug gap and replace it if necessary, ensuring it meets manufacturer specifications (typically around 0.040 inches).
• Install the new spark plug, and torque it to the manufacturer-recommended specification (usually around 13-15 lb-ft).
• Reinstall the ignition coil and reconnect the electrical connector.

3. Replace Ignition Coil (if needed)

• If the ignition coil shows signs of damage or wear, replace it.
• Tools Required: Ratchet, socket set.
• Remove the old ignition coil and install the new one, ensuring a secure connection.

4. Check and Clean Fuel Injector

• Tools Required: Fuel injector cleaner, noid light (optional).
• If the fuel injector is found to be faulty, remove it from the engine.
• Clean the injector using a fuel injector cleaner or replace with a new one.
• Reinstall the injector, ensuring proper sealing and connection.

5. Reassemble and Test

• Reconnect the battery.
• Start the engine and allow it to reach operating temperature.
• Monitor for any misfire codes or symptoms.