No programmer on mine. I thought any mods would shorten the overall lifespan and I intended on it lasting as long as possible.
My idle has always gone up and down since day one but I've never seen any smoke.
I ordered mine new...it came in with 8 miles on the odometer. I had 42,600 miles on it 365 days later...It may only get 12-15K a year put on it now.
Never any modifications and only dealer replacement of fuel system components...less filter.
Anyone else ever figure how much they truly spent on fuel? I did the math a while back...
Right now mine is within 1K of what I spent on the truck based on an average cost of diesel at 2.75 a gallon...