Question about 1998 Nissan 200SX
NOX is usually something like an EGR Valve or engine overheating,at least in the inspection lane.
I don't have the code, but you can see if the Egr is working and pull it off to make sure the passages are clean.
Going to inspection on a cool day helps, and don't sit there idling,shut it off.
Posted on Aug 05, 2010
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Posted on Jan 02, 2017
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