Went to performance dodge down here in omaha asking if they could flash my ecu to enable high idle and got a conserded look from the service manager. He said "well let me ask one of our diesel techs". The tech told me that you cant flash a ecu to enable high idle on my 2002 dodge 5.9 cummins if it didnt have it from the factory, but wasn't it an option on these? He said unless i use a aftermarket devce like a smarty or something I wont be able to. Is he correct or did they just not know how to do it?