What is the correct solution to the automobile engine fault code P0300?

The fault code P0300 of automobile engine means that the engine detects multi-cylinder fire, which is caused by the leakage of spark plug, ceramic and electrode. Just replace the spark plug of the vehicle. The specific operation steps are as follows:

1. Pull out the high-voltage line on the cylinder head upwards.

2. Use the spark plug special tool to loosen the spark plug.

3. Take out the spark plug with high-voltage wire.

Install a new spark plug on the engine.

5. Plug the high voltage line of the vehicle back into the spark plug.