Just delete the truck and problem solved. Why continue with emissions problems when you can spend $1500 and problem fixed?well my dealership skirted that one - in Colorado the vehicle needs to be in 4 times or more than ~10 days out of service.
They declared that my issues are not reparable and that 2 regens a tank and 12 mpg is not a problem. I think after driving hard for 30 miles at 65 mph should not need a regen after sitting in minor traffic sitting at a light.
Just saying - love the truck, hate the truck and I tell as many people as i can to stay away from Nissan, The CEO is a crook and their tech is the worst. I have a 2010 Honda with a better nav and bluetooth system and I can see the gauges in my Honda - the gear lever blocks out half of my radio/nav buttons when driving.