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Maxima Forums
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6th Generation Maxima (2004-2008)
P0420 code??
6th Generation Maxima (2004-2008)
Discussion of the 6th generation Maxima. Come see what others are saying.
P0420 code??
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Apr 15, 2026 | 09:36 AM
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Max07beater
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P0420 code??
Hey! 183,000 miles strong. Catalytic converter functional malfunction code went a couple days ago.
No signs or symptoms to note.
AutoZone doctor said to try Cataclean.
Thoughts?
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6th Generation Maxima (2004-2008)
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Scraping grinding noise at speeds below 20
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