Hey guys, I'm kinda in the same boat as Jager. I've had code P0430 on and off for about a year now. The CEL seems to only come on when I'm driving slowly in traffic or parking structure. I used a OBD2 bluetooth adapter and the Torque app to gather some data. From what I understand, the O2 sensor after CAT should be a relatively flat line around 0.7V. My O2 voltages look pretty bad, don't you think? I haven't had a P0420 on bank 1. I'm trying to find out if my bank 2 CAT is going bad or not in the near future.
