computer indicates O2 sensors downstream of cat converter are faulty. on 2008 GMC Sierra 1500

Changed sensors, engine light still on! computer printout mentioned a "FUSE" plus the O2 sensors to be changed. Is there a fuse in this system? Codes:P0161,P0141.P0060, P0056, P0054, P0036

Asked by for the 2008 GMC Sierra 1500