What is the meaning of OBD-II p0307 code , and what are the possible causes and how to solve this issue?

OBD-II code P0307 refers to a misfire detected in cylinder 7 of the engine. Possible causes for this issue are: Failed spark plug or ignition coil Fuel system issues, such as clogged fuel injectors or low fuel pressure Engine performance issues, such as a vacuum leak or incorrect ignition timing Engine mechanical issues, such as a worn engine component or damaged valve To solve this issue, the following steps should be taken: Verify the fault code with a OBD-II scanner Inspect and replace the spark plug and ignition coil for cylinder 7 if they are found to be faulty Check the fuel system for any clogs or low pressure Inspect the engine for any vacuum leaks and repair as necessary Check the ignition timing and adjust as necessary Inspect the engine components for any wear or damage, and repair as necessary If the problem persists, further diagnosis and repair may be necessary. It's important to note that a professional mechanic should diagnose and repair this issue, as it requires specialized tools and knowledge to safely diagnose and repair the vehicle.