Service def system see dealer ram 2500
Research and compare vehicles, find local dealers. Make sure youre buying DEF from a place that stores it in a cool area- as heat will ruin it. By then a message popped up and told me 5MPH Max Speed in 150 mi. Autoblog brings you car news expert reviews of cars, trucks, crossovers and SUVs and pictures and video.
The NOx sensor is very touchy and if your DEF is degraded any, it will trigger the code. I went to the dealer, they re-flashed my ECM and the problem stopped. I have no reservations about deleting my emissions and tuning it and only wish I did it sooner. I got a CEL with the warning 'Service DEF System See Dealer'. I do blow a little smoke when I get on it, but it's not rolling coal. My highway mileage went from 14mpg to 19mpg at 80 mph. I installed a 150hp emissions delete tune and woke that Duramax engine up. I also disconnected the electronic connections for the EGR valve. I also added a lift pump to make sure that that the increased fuel volume is maintained to keep from draining the fuel rails and taking a chance of damaging the CP4 high pressure fuel pump. I decided to go for a delete tune by disconnecting my DEF pump, removing my DPF, but keeping my cat intact to keep it from droning and smelling like an old piece of mining equipment. This is indicated by a message 5 MPH Max Speed in XXX miles, Service DEF System, See Dealer which will incrementally count down. As a result, the system will enter what is commonly called Inducement Strategy. I did run an EFI Live based emissions compliant tune, but it did nothing for my frequent regens or dismal mileage. These codes are set when the system detects inadequate DEF quality due to diluted, degraded, or contaminated fluid. I never had any DEF issues, but my refill warnings started to give me less and less mileage before it would go into limp mode. The DEF system uses a complex radio frequency type level sensor to detect the amount of fluid present in the DEF tank. A defect may be present with the DEF (diesel exhaust fluid) level sensor. Yeah, you can tune it with the emissions intact, but you still have the DEF issues, regens, and crappy mileage. This bulletin applies to 2014-2 trucks equipped with a 6.7L Cummins diesel engine.