O2 pre/post cat interchangeable

[Most_Wanted]

Good to know they function the same. I eventually got a recurring CEL(P1115). From what i read has to do with bank 1 pre O2 not heating at a specific time. Has happened twice. Always 5 minutes after restarting the car from a hour sit. I've researched but this CEL is hardly spoken of regarding headers. With the cats gone the O2 will take longer to warm but i have yet to pull a CEL from bank 2 and the engine still idles/runs fine. Will try swapping the O2 the next time i get under there.