Originally posted by fazzman:
I pulled a P0420 bank one yesterday on my zetec. Reset the computer and goes away until i have to sit in traffic after work. When i come to a stop after driving the car a lot the engine sometines stumbles, doesnt stall though. Other then that everything is ok. Im thinking bad rear O2 sensor, its all rusted up and evrything. Thanks
it may be rusted up, but you said yourself that it said BANK 1 and that code IS for bank 1
the front header as you open up the hood is the bank 1 header....someone correct me if i am wrong
