Just a little clarification. Excellent job Kyle, and thanks for swapping parts with me. You actually saved me a ton of money from what the dealer would have charged me in diagnostics fees. To clarify, my car actually ran fine. It wouldn't buck or stall or anything like that. It just went through gas. I was getting 200 miles per tank. That's why I really didn't think it could be the O2 sensor. All the threads i've seen in regards to O2 sensors going bad, the car would barely run. But mine ran fine. So if there is anyone out there racking thier brains over this. Do not overlook the front O2 sensor.