I have had the same issue. The first time the check engine light came on the dealership plugged in and said there were no codes. They cleared the check light and said to come back if it happens again. The second time I checked it myself before bringing it in, showed P-0174 lean bank 2. Both times it happened i was driving in really deep snow. The shop foreman told me it could be a dirty filter. I bought a new filter, so I guess we will see. I also noticed a big puddle of ice down in the bottom of the intake. Could snow be causing this issue?
