Are these sensors the Oxygen sensors? P1288-Air/fuel sensor 1, Bank 2, slow response P1289-Air/fuel sensor 1, Bank 2, slow response P1278-Air/fuel sensor 1, Bank 1, slow response I replace the Cam sensor's about 8 months ago...can this be a problem? http://www.thenissanpath.com/viewtopic.php?p=63019...