HiHoeSilver
Away!
If your sensors are good and these numbers are accurate, this is definitely a catalytic converter issue.
O2S11(V): 0.42
O2S12(V): 0.055
O2S21(V): 0.045
O2S22(V): 0.040
I agree that the post cat numbers are lean and I wonder why there isn't a 137 or 420 code.
However, all of his codes are sensor 1 related.
Insufficient switching, heater circuit, high voltage, and no activity.
Id still really like to see the graphs at warm idle. Do you have any exhaust leaks? Have you checked your fuel pressure?