how to fix P0302 misfire code in my Volvo XC60 Second Generation (2018-2024)

Learn how to diagnose and fix P0302 cylinder 2 misfire in Volvo XC60. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal.
• Allow engine to cool down before commencing work.

2. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench, ratchet.
• Remove the ignition coil from cylinder 2.
• Remove the spark plug using a spark plug socket.
• Inspect the spark plug for fouling or wear; replace if necessary.
• Install a new spark plug and torque it to the manufacturer's specifications (typically around 18-22 lb-ft).
• Reinstall the ignition coil.

3. Inspect and Replace Ignition Coil

• Tools Required: Ratchet, socket set.
• If the ignition coil is damaged or faulty, remove it from cylinder 2.
• Install a new ignition coil and ensure it is properly seated.
• Reconnect the electrical connector securely.

4. Test Fuel Injector

• Tools Required: Fuel injector tester or multimeter.
• Disconnect the fuel injector connector for cylinder 2.
• Use a multimeter to test for resistance according to specifications (usually 12-16 ohms).
• If the injector is faulty, remove it and install a new one.
• Reconnect the fuel injector connector.

5. Conduct Compression Test

• Tools Required: Compression tester.
• Remove the spark plug from cylinder 2.
• Insert the compression tester into the spark plug hole.
• Crank the engine and record the compression reading. Consult specifications for acceptable values.
• If the compression is low, further investigation into piston rings or valves may be necessary.