Hello all, my 03 4.6 has had a rough idle after warming up for months now, at first it was barely noticeable but all of a sudden it went from barely noticeable to the point of wanting to die at idle. A few days ago the CEL came on with P2195 and P2197. It's fine for about 3 minutes after the first start of the day and if your going down the road. I've read it could be vacuum lines. What are the odds of both O2's being bad at the same time? It's got about 170k on it