O2 sensors HELP

[camar038oo]

Make a long story short my car is throughin a code sayin that the O2's are shot. Gonna buy some new ones and install myself. When I started lookin, I was confused when I saw a 2- wire and 4- wire. Basically my question is what's the difference(besides the obvious wire situation) and which would be best for my 2000 3.8L? Thank you

[l1tech]

The 4 wire sensors are heated sensors..that's what you have..for what it's worth cars don't throw codes that specifically say a component is bad...what code is it