Nissan Pathfinder fluctuating RPM issue requiring repair estimate on Nissan Pathfinder

Some Nissan Pathfinder owners report experiencing fluctuating RPM issues, which can stem from various factors such as a faulty Exhaust Gas Recirculation (EGR) system. These fluctuations may trigger the P0507 diagnostic trouble code, indicating higher than expected idle control system RPM, leading to potential performance problems. Additionally, some owners notice a loss of power at specific speeds, erratic RPMs, and pulsing sensations during acceleration, all of which signal the need for diagnosis and repair. It is advised that owners consult a professional mechanic to accurately identify the cause of the fluctuating RPM and provide a proper repair estimate, which may involve addressing components like the EGR valve, idle control system, or fuel pump pressure.