1492 code

General discussion area for the L30-chassis Altima
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dlaw
Posts: 1
Joined: Sun Dec 20, 2009 4:44 am
Car: 2001 altima cal emisiion

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Getting a 1492 code on a 2001 altima. That's the 1st code that comes up, then there is another code related to nox sensor. Any idea where to go from here in fixing?

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wade001
Posts: 877
Joined: Thu Oct 15, 2009 12:34 pm
Car: 2009 Altima coupe 2.5s mt

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high NOx could be from running to lean (to much O2 in the cyl?), check your EGR to see if it's clogged.
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