Can old/bad O2 sensors cause the plugs/wires to need to be replaced?

 

Bad O2's should throw a code.
I suppose if bad O2's were causing a rich condition, that it could foul plugs over time, but it would have no effect on the plug wires.

 

Sixpack

Thanks, no code. O2 sensors were recently replaced and we're running a bit rough.....

 

I'll let someone else more versed in D2 O2 issues help you, but, it is not uncommon to get brand new bad O2's right out of the box, and several different brands too.
Walker seems to have a good reputation, and I have all 4 in my D2 without issues.
I think the the O2's values need reset in the ecu when they are replaced as well, and I have a Nanacom and did that.