Purchased my first diesel truck last week (2014 ED limited) and I absolutely LOVE this thing. Now I purchased it with about 144k on the clock and looks like the P/O had used the hell out of it. Now when I purchased the truck no lights or anything were on and about 4 days and less than 1000 miles I get the CEL with code P2002 DPF bank 1 below efficiency. Anything I can do to remedy this other than spend 1300$ for a new one? And anything else to look out for that would be coming up with the current miles would be some awesome insight, Thanks.