Had the pleasure of my check engine light coming on for the second time now in about a month. Last time I had it checked Advance Auto Parts said my O2 sensor was reading slow and this would most likly get worse. Well I am guessing it the same thing now and was wondering how hard it is to change and where this thing might be. Its is a real pain for a moderate do it your selfer or shouldn't I even bother with it. Any idea what they cost? Any feed back on my problem would be much appreciated. THanks.
