I've been wrenching on a new-to-me daily driver 2001 XJ Sport (4.0, 4x4, auto, 153K, stock, no lift, never off-road) all summer, and am sort of stumped on a new issue, which I originally thought was a failing cat.
OBD is throwing code P0432 [Catalyst Efficieny Fault Bank 2], which usually means...