guys, sorry if the answer to this has been posted, I Have. Disco 2 v8 with 4 x O2 sensors. I have bank 2 sensor 1 reading 0v? On idle is have a voltage then I drive and the voltage goes to zero? Maf changes, plugs and leads changed, o2 sensor changed. I can't find any split pipes, but I assume that as it's only one side I have either not enough fuel being burnt or an air leak? Also assume that the O2 readings are going out if limits hence goes to zero? Anyone had this before? Can I delete the O2 sensors and set the fuel? I would rather fix then hide the MIL light! Shame as car only has 48k on the clock and good condition other than this gremlin.