Replace NOx (Nitrogen Oxide) Sensor(s)
Exhaust System
Replacement of the sensor that measures nitrogen oxide gases in the exhaust, part of the emissions control system. A faulty sensor triggers warning lights and causes the vehicle to fail emissions testing or run inefficiently.
Estimated Cost
$350–$900🔒
Parts + labor, based on the parts this service typically requires. Not specific to your vehicle or region — this spans all vehicles, all regions, and all part grades, so treat it as a rough ballpark rather than a quote.