how to fix P0302 code on Porsche Cayenne E3 (2018-Present) for cylinder misfire?

Learn how to diagnose and fix P0302 cylinder 2 misfire in Porsche Cayenne E3. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for repair.
• Disconnect the vehicle's battery to ensure safety while working on electrical components.

2. Replace Spark Plug

• Tools Required: Spark plug socket, ratchet, extension, torque wrench.
• Remove the ignition coil from cylinder 2.
• Use the spark plug socket to remove the old spark plug.
• Inspect the old spark plug for signs of wear or fouling.
• Install a new spark plug, ensuring it is gapped correctly (refer to manufacturer specifications).
• Torque the spark plug to the recommended specification (typically around 15-20 lb-ft).

3. Replace Ignition Coil

• Tools Required: Ratchet, socket set.
• Remove the ignition coil from cylinder 2.
• Install the new ignition coil, ensuring it is seated properly.
• Reconnect the electrical connector to the ignition coil.

4. Inspect and Clean Fuel Injector

• Tools Required: Fuel injector cleaning kit (if cleaning), or replacement injector.
• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel injector from the rail.
• If cleaning, follow the fuel injector cleaning kit instructions; if replacing, install the new fuel injector.
• Reconnect the fuel injector connector.

5. Reassemble and Reconnect Battery

• Reinstall any components removed during the process.
• Reconnect the vehicle's battery.