@Muddy,
When I bought my 2003 Liberty Sport 3.7 V6 the O2 wires were just hanging unconnected to the O2 sensors, - about 8 months ago.
After I got 18 ECM codes down to 3, - now with 2 of them O2 sensors each rail - I replaced all coils and plugs, and TPS, PCV, and many other sensors around the...