I currently own a 2014 RAM 5500 4x4 with 6.7 diesel and Aisin transmission. I previously owned a 2001 RAM 3500 4x4 5.9 diesel manual transmission. I know the 5.9 was a great engine however it had a weakness that the 2001 5.9 fuel pump was mounted on the engine and a weak pump could knock out the injector pump. I had an aftermarket Fass fuel system installed with gauges which I could monitor the fuel pressure. My question is: On the current 2014 RAM I have done nothing so it is all factory equipment. I think the fuel pump has been relocated to the fuel tank but is there still a potential weakness that could damage the injector pump. What recommendations would you give me to protect the fuel injectors / pump. Is the factory sensors adequate? Also, is there a chip recommendation that could be added to improve fuel mileage?