I'm dealing with same problem with my 01' LS 430. Before I pull the intake off, I want to perform the bank 1&2 circuit swap to verify that bank 1 is a bad circuit since I've already replaced sensor on bank one. Does anyone know what connector number and what bank one and two wire color codes are? Any help would greatly be appreciated. Also, what terminal tool would be appropriate for the terminal swap and part number of the tool?