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p0420
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  1. 4th Generation Altima (2007-2009)
    I have a 2008 Altima 2.5L with 150k miles. It just pushed a P0420 code. I have done a lot of research on this forum and others and it seems in the older models a precat failure could cause debris to be sucked into the engine causing engine failure. I have not found any reports of this happening...
  2. 3rd Generation Altima (2002-2006)
    Dear Sir, I have a Nissan Altima 2.5S 2005 with 135000 miles on it. I had a check engine light come on about one month ago & when I took my car to brakes plus, they diagnosed the code & said that throtlle body needs replacement. they charged me 500 dollars & replaced the throttle body with an...
  3. 3rd Generation Altima (2002-2006)
    So long story short, my car has been throwing me a P0420 code for a while and I knew my cat was ----ed. So I've been saving some money for a while to replace it and now I'm not sure if I should get the MagnaFlowDirect Fit Catalytic converter from AdvanceAutoParts or go with something that would...
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