throwing some codes
I just finishd up with my exhaust system, the lt's true duals no cats.
I have had the rear o2 sensors codes deleted, as well as the egr and air stuff.
could it be running rich because i have no cats?
i erased the codes with the scanner expecting for the light to pop right back up but never has yet. I can hold the car in nutral at about 2 grand and i can hear the engine bobble from the exhaust.
i pulled the o2's out and put two different ones in and it still sounds the same.
how do i fix this, any suggestions?

