Nissan Pathfinder check engine light with cylinder 6 misfire issue unresolved after multiple dealer visits on Nissan Pathfinder

Some Nissan Pathfinder owners report experiencing unresolved check engine light issues related to a cylinder 6 misfire, specifically coded as P0306. These owners often find that despite multiple dealer visits, the problem persists, prompting the need for diagnostic steps such as using an OBDII scanner to retrieve the misfire code and analyzing freeze frame data for targeted inspection. Common causes identified include faulty components like spark plugs and fuel injectors, as well as potential vacuum leaks. Additionally, some owners note that a malfunctioning fuel pressure regulator can lead to raw fuel entering cylinder 6, exacerbating the misfire. The severity of the P0306 code is concerning, as it can result in increased fuel consumption, rough engine performance, and hesitation during acceleration. Timely resolution is crucial to prevent further engine damage and maintain optimal vehicle performance. Owners are advised to discuss these issues in detail with service technicians if the problem continues.