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Discussion Starter · #1 ·
1998 SOHC 4.0 Explorer. I would like some help determining
whether PO430 is up flow or down flow sensor. I think it must be the
up flow as I replaced the down flow sensor about 6 months ago.
Your help would be much appreciated.

Thanks in advance


Discussion Starter · #3 ·
I think you are correct, I hate to bite the bullet and purchase one
but the history of this is pointing that way. Thanks for the reply.


Everett Cotton

On Sat, 21 Jan 2006 17:56:04 -0500, [email protected] wrote:

>the cat failed, if u replaced the downstream o2 u shot the
>messanger,,,need a cat
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