My commanded AFR has always been 14.7, and 29.4 during DFCO (or FCO coast down). Suddenly it's not 13.79 and 27.58 respectively. My car is running horribly rich. Even during cold start, it's commanding the 13.79. It either commands a 13.79 or a 27.58. O2 wideband sensor? o2 downstream? MAF? MAPs? Any ideas? LNF 2.0L turbo, tuned, CAI, Manual....Any help is appreciated!