my o2 sensors are at readiness 400 cats are gutted high rpm enable 4000 / 3900 maf is 15000/300 dtc all o2 related are off 3.7b1.hptdfco is stock ihave a lean spike when dfco occurs and back on throttle my wide band shoots to pegged and not sure how to get rid of it engine spits and sputters too for a second