Engine Code PO430 and PO328 04 Xterra - Nissan Xterra Forum
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#1 Old 08-14-2010, 10:34 AM
Join Date: Jul 2009
Location: Northern Virginia
Posts: 2
2004 Xterra
edzo is on a distinguished road
Engine Code PO430 and PO328 04 Xterra

I'm getting codes PO430 and PO328. So I need some advice from those in-the-know. A regular mechanic told me he would diagnose it (the 430) for $135 by running smoke tests of the exhaust etc. A nearby Nissan dealer charges $105 to run the thing on their Nissan computers. Am I better off with the dealer? If it's the Cat, am I better off with genuine Nissan parts or aftermarket? Am I better off with the dealer making the repairs or a regular mechanic?

Part of my problem is I'm new to the area so I'm just stabbing in the dark with mechanics, and the vehicle wasn't purchased from a local dealer. It's an 04 that runs great and has 91,000 on it. Thanks for any substantive input.

Last edited by edzo; 08-15-2010 at 12:10 PM.
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#2 Old 08-14-2010, 10:36 AM
Join Date: Jul 2009
Location: Northern Virginia
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2004 Xterra
edzo is on a distinguished road
just to add on

My primary goal is to make sure the thing passes emissions.
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#3 Old 08-16-2010, 02:14 AM
Join Date: Aug 2010
Location: Sheridan Wyoming, a small country town at the Foot of the foot of the Big Horn Mnts.
Posts: 32
2002 Xterra
Tyler.McKinley is on a distinguished road
My thoughts would be, that if you don't plan on doing anything outragous with your X, then i would go for a factory CAT.

I have the same error code problem (430) but i'm just going to replace the entire exauhst, just because it would look nicer. but go factory all the way when it comes to repairs, that and they should be cheaper too.

If quizes are quizicle, then what are tests?
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2002 Xterra

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