Engine code help

[rikful]

Engine gave me a code just about the time 50 miles to empty dinged on. Only thing ive done was install S&B CAI 2 days ago and have driven 300 miles or so since the install. Was wondering if anyone else has had this issue and what it was. Still under warranty with 34k so ill be taking it to dealer tomorrow.

[rikful]

Dealer says its a P2002 code DPF failure. Which is common with CAI they say it is because the oil on the filter coats the MAP sensor. And also said this will void my warranty.