I have a 2010 Dodge Ram 2500 6.7L 6 speed trans all stock. I got a code p0191 for fuel performance code I cleared it and it takes weeks to a month if it comes on again. It only came on twice and has been off for weeks now truck runs great ehat should fuel rail pressure be at an idle. Could idling a long time cause this using remote start a lot I doubt it could but looking for ideas and are most people fixing this code with software updates the sensor is expensive and if it ran rough or something it would be easier to track down . Thanks