What does P0300-00 detected engine misfire mean?

[Irene]

P0300-00 detected engine misfire means: 1. Spark plug failure: The first possibility is that the spark plug may have failed to ignite, causing the engine to misfire. 2. Engine issues: The second possibility is that the engine may have problems with the air-fuel mixture, fuel injector, or insufficient cylinder pressure leading to inadequate combustion acceleration, resulting in the engine misfire fault code. Relevant information about engine misfire is as follows: 1. Engine misfire: Refers to unstable or even non-existent combustion in one or more cylinders of the engine. 2. Consequences: After an engine misfire, high concentrations of hydrocarbons enter the exhaust system, causing excessive tailpipe emissions. High concentrations of hydrocarbons can also raise the temperature of the three-way catalytic converter, potentially damaging it in severe cases.