Looking for Shop in Houston to Diagnose Emissions Issue

800 Views | 5 Replies | Last: 4 yr ago by drumboy
drumboy
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AG
2013 Infiniti QX56 w/ 95K miles just started throwing both the P0420 & P0430 codes, which are basically faulty cat codes, and it seems weird to me that both would go out so close together.

Anyone know of a shop in Houston (west side preferably) they'd recomment?
1agswitchin4lanes
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AG
Are the plugs original?

I'd put plugs and clean TB, add some bg44K in the tank for starters. I don't think you need cats.
drumboy
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AG
Pretty sure they're original so I'll try this. Any recommended plugs?
1agswitchin4lanes
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AG
Check manual. I like jap plugs for jap cars.
Dill-Ag13
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AG
NGK
Jack Cheese
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AG
I put NGK iridium in my 2010 QX56. I think it is OEM recommended. Easy job, probably $60 for the plugs on amazon.
drumboy
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AG
I went with Bosch since they're OEM.
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