Is there anyone the knows why a truck will kinda go into limp mode no turbo lag and runs like Shizznit... Has 4" MBRP down pipe back and a stealth 2 cold air intake. but need less to say i put it back to stock and sending a code 1448 is there ne one that knows what codes are what....
Thanks Rick

DTC P1448: Diesel Particulate Filter Regeneration Frequency Too Low

So you have an LMM right? That is probably your DTC
Need to just get rid of DPF

So i had to put it back stock so it can go to the dealer.....
which sucks cause now the problem it was haven the turbo would lag and shift hard and shizznit

I just realized you had turbo back exhaust. No DPF. What did the dealer say?

the dealer says there isn't any thing wrong with my pos truck

PM one of the Mods and see if they will move this thread over to one of the LMM sections. Might get more help. Also fill out your signture so we can see whats all done to your truck. So is that the only code your getting still?