how to resolve my Volkswagen Golf MK7.5 (2020-Present) P0302 misfire code

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the battery negative terminal to ensure safety.
• Remove any engine covers if necessary for access.

2. Inspect and Replace Spark Plug

• Remove the spark plug from cylinder 2 using a socket and ratchet.
• Inspect the spark plug for wear or carbon buildup.
• Replace with a new spark plug if worn; torque to manufacturer specifications (typically around 15-20 ft-lbs).

3. Check and Replace Ignition Coil

• Disconnect the electrical connector from the ignition coil for cylinder 2.
• Remove the ignition coil using a socket.
• Inspect the ignition coil for cracks or damage and replace if necessary.
• Reinstall the new ignition coil and reconnect the electrical connector.

4. Inspect and Replace Fuel Injector

• Disconnect the fuel injector connector for cylinder 2.
• Remove the fuel injector using a fuel injector puller or suitable tool.
• Check for clogs or damage. Replace with a new injector if needed.
• Reinstall the new fuel injector, ensuring a proper seal and reconnect the wiring harness.

5. Conduct Compression Test

• Reconnect the battery.
• Remove the spark plug for cylinder 2 again.
• Insert a compression tester into the spark plug hole and crank the engine.
• Record the compression reading; it should be within the manufacturer's specified range (usually around 150-200 psi).
• If compression is low, further investigation into piston rings or valves may be necessary.

6. Final Steps

• Reconnect all components, ensuring everything is secure.
• Reconnect the battery terminal.
• Clear the P0302 code using the OBD-II scanner.