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Ok, got this code from AZ. Than a list of discriptions to fix it 1) Catalytic Converter (replaced it) 2) Upstream O2 sensor (replaced it) 3) Down stream O2 (replaced it) ??? Ok i am out of options what do u guys think i should do??? Or do i have other options instead of taking it to a dealer or shop!! Thanks

Also i am open to buying a scanner if there is one out there that someone could recomend for a DIY
 

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Double check your catalyst warranty... 8/80 I think...

BUT, here is a catch.... need to look and see if catalyst has a cracked exhaust manifold... there was a VO4 campaign, for cracked manifolds, so have dealer run VIN on WEB DCS to see if recall still open.

If you get lucky and manifold has crack, and less than 100,000 mile (provided your are original owner), exhaust manifold/catalyst is covered for the cracked manifold..


P-0420, Catalyst efficiency, Pre-cat & Post cat OX activity to PCM logic determines bum cat.
 
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