I just replace the top oxygen sensor, plugs, and pcv valve on a 2012 Nissan Sentra Special Editon.

Asked by Aug 03, 2015 at 06:44 PM about the Nissan Sentra

Question type: Maintenance & Repair

Does the sensor that goes at the bottom need to be repair.  The engine light is now off.

1 Answer

1,505

If light is off I would say you're good to go. But to be safe have codes in ecm checked. History of codes would tell what was wrong.

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