Hello, nissan pathfinder LE 4 x 4 3.3 litre automatic. When start the car it idles very rough, but when i accelerate the engine runs quite smooth. But when I am cruising at a steady pace, 10 mph to 60 mph the engine revs approximately 150 rpms then cuts out completely. No saving it by giving it gas, nothing. But then it will start right back up. It usually take 10-15 seconds for it to cut out. Thanks