I'm new here, I need some help, I have a 07 dmax 2500 , it tells me to clean the exhaust filter, but it doesn't have one it has the 2007 and a half computer but it's the 07 motor if that makes sense, it goes into limp mode, it doesn't need the dpf fluid either, is there any way around it without having to spend a ton of money on a tuner? Any feedback would be appreciated