Q: keep failing NOX new spark plugs and oil change and NOX went higher on 2002 Dodge Stratus

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
also new thermostat
(2) Answers
You need to put the same spark plugs that were from initial build. Champion any other will cause problems.
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