how to fix P0302 code on 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 tools and parts. Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Ignition Coil

• Tools Required: Socket set, torque wrench, dielectric grease
• Remove the engine cover if applicable.
• Locate the ignition coil for cylinder 2.
• Disconnect the electrical connector from the ignition coil.
• Remove the bolt securing the ignition coil and pull it out.
• Inspect the coil for cracks or damage. Replace if necessary.
• Apply dielectric grease on the new ignition coil's connector.
• Install the new ignition coil and torque the bolt to manufacturer specifications.

3. Inspect and Replace Spark Plug

• Tools Required: Spark plug socket, torque wrench
• Remove the ignition coil again if it was previously replaced.
• Use a spark plug socket to remove the spark plug from cylinder 2.
• Inspect the spark plug for wear, carbon buildup, or damage. Replace if necessary.
• Ensure the new spark plug is gapped correctly according to manufacturer specifications.
• Install the new spark plug and torque it to the specified value.

4. Inspect and Replace Fuel Injector

• Tools Required: Fuel injector removal tool, O-ring seals
• Relieve the fuel system pressure by removing the fuel pump fuse and running the engine until it stalls.
• Disconnect the fuel lines from the fuel injector in cylinder 2.
• Remove the retaining clips and pull the fuel injector out.
• Inspect the fuel injector for clogs or failures. Replace if necessary.
• Install the new injector with new O-rings and ensure proper seating.

5. Reassemble and Reconnect

• Reinstall any components or covers removed during the process.
• Reconnect the battery.
• Clear the P0302 code using the OBD-II scanner.