2005 Altima 2.5L P0420 Code
I have a 2005 Altima with over 140,000 miles I have replaced the crank shaft sensor once almost exactly a year ago. I now have the P0420 code and I am willing to just change the O2 sensors first but wonder should I just replace the precat since it is almost guaranteed to go bad from what I have read on many post. Also thinking to make sure it doesn't ever happen again go to a precatless manifold. I have found those for less then $100
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