how to fix P0302 misfire code in Tesla Outback 5th Generation (2015-2019)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface, and the engine is cool.
• Disconnect the negative battery terminal to avoid electrical shorts.

2. Inspect and Replace Spark Plug

• Tools Required: Socket set, torque wrench, spark plug socket.
• Remove the engine cover if necessary.
• Locate the spark plug for cylinder 2 (refer to the vehicle manual for location).
• Using the spark plug socket, remove the spark plug.
• Inspect the spark plug for wear or carbon buildup; replace if necessary.
• Install the new spark plug and torque to manufacturer specifications (typically around 13-15 lb-ft).

3. Check and Replace Ignition Coil

• Tools Required: Socket set, torque wrench.
• Disconnect the electrical connector from the ignition coil for cylinder 2.
• Remove the ignition coil mounting bolts.
• Gently pull the ignition coil out.
• Inspect the coil for cracks or signs of damage; replace if necessary.
• Install the new ignition coil and torque the mounting bolts to specifications.

4. Test Fuel Injector

• Tools Required: Fuel pressure gauge, injector cleaning kit (if needed).
• Disconnect the fuel injector connector for cylinder 2.
• Use a multimeter to check for proper voltage at the fuel injector connector.
• If the injector is faulty, replace it by removing the retaining clips and swapping it with a new one.
• Reconnect the injector and test for proper function.

5. Perform Compression Test (if needed)

• Tools Required: Compression tester.
• Remove spark plugs from all cylinders for an accurate reading.
• Insert the compression tester into cylinder 2 and crank the engine.
• Note the compression reading; compare it with specifications (typically around 150-200 psi).
• If compression is low, further investigation is required (valve issues, head gasket failure).