I recently started getting a code P0139 as well as an old code P1441 (history). I suppose the o2 sensor is causing my latest problem which is when idling for more than 2-3 minutes with the engine warmed up it just suddenly dies. How do I determine which or more importantly where is the
bank 1 sensor 2. If this is the only code should I replace more that just the one o2 sensor I am getting a code for and any brands I should stay away from or just go to the dealer.