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- - Precat or Post cat P0420 and P0430? (http://986forum.com/forums/boxster-general-discussions/63445-precat-post-cat-p0420-p0430.html)

Shred

10-05-2016 05:04 PM

Precat or Post cat P0420 and P0430?

Hi,
I have done a lot of research on this but still can't work out with codes P0420 and P0430, how to tell if it is the Precat (Three Way Cat) or Post Catalytic converter failing?

Can anyone give me some clues?
Thanks :)

JFP in PA

10-05-2016 05:17 PM

Both are for the three way cat.

Shred

10-05-2016 05:20 PM

Thanks JFP.
Is it a different code for the Post-catalytic converter on a 986S?

Shred

10-05-2016 05:24 PM

I've been looking at the Magnaflow CARB cats, I don't see how their 444204 would be able to replace the TWC.
https://www.magnaflow.com/products?partNumber=444204

Shred

10-05-2016 06:19 PM

Sorry, I see there are no oxygen sensors for the post cats.

JayG	10-05-2016 07:06 PM

Your best bet ( although technically not legal) is to buy a used one
Check ebay and wrecking yards

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