Actually... The 02 sensors have codes of their own. 0432 refers to bank 2 cat inefficiency. It's the most rear cat on the down pipe off the motor You could have a small leak at the flange off the manifold.
Any mods recently done like a body lift or the like? Something may have disrupted the normal seat of the down pipe to the manifold. Any exhaust work done lately?
~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
... and NEVER will be