my Ram 1500 DT (2019-Present) has a check engine light and it's p0301 code, what now?

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical issues during repair.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket, dielectric grease.
• Remove the ignition coil by unscrewing the retaining bolts and gently pulling it out.
• Remove the spark plug using the spark plug socket. Inspect for wear or fouling.
• If replacement is needed, install a new spark plug to the specified gap (typically 0.040 inches for Ram 1500).
• Apply a small amount of dielectric grease to the spark plug threads to prevent seizing.
• Torque the spark plug to the manufacturer's specification (usually around 13 lb-ft).

3. Inspect and Replace Ignition Coil

• Tools Required: Socket set.
• After removing the spark plug, proceed to inspect the ignition coil.
• Check for visible cracks, corrosion, or damage.
• If damaged, remove the ignition coil by unscrewing it from its mount.
• Install the new ignition coil in reverse order of removal, ensuring it is seated properly.

4. Check Fuel Injector

• Tools Required: Fuel line removal tool, multimeter.
• Locate the fuel injector for cylinder 1, disconnect the electrical connector.
• Check the injector resistance with a multimeter (typically between 12-16 ohms).
• If out of specification, replace the fuel injector.
• Reconnect the fuel line and electrical connector, ensuring no leaks.