BlEaKDiViNitY
11-01-2013, 06:43 PM
My fiancé drives a 2002 altima and her car stated throwing the code PO402 catalyst system efficiency . I should just replace the cat and o2 sensors and is should be able to clear it right? Right now the car has absolutely no power whatsoever couldn't even drive it home because it wouldn't make it over a hill >.>