P0031 fault code

[AnnieP]

Hi my 2014 mk4 failed its emission test and on diagnostics shows P0031 There are no warning lights and the car seemed to be running fine. I believe this could be a faulty lambda oxygen sensor? Can anyone steer me to the correct part number so I can get a replacement there are so many at vastly different prices? Any help/advice appreciated.

 

[Micra Paul]

May I suggest that you hand it to a competent mechanic, not a Nissan main dealer, to test the two oxy sensors heaters & two control circuit/connections to determine which of the two O2 sensors, front or rear, is suspect & to order & fit any parts required.

With ignition switched off, sometimes simply unplugging the O2 sensor & cleaning the connections, can clear a fault code after a few stop start normal running operation cycles.

If determined with a DIY solution & having determined whether you need a front or rear O2 sensor, call the local auto factors trade parts suppliers with your vehicles registration number & they can identify what’s required without any part numbers.

Be sure to ask for trade prices for your employers business name from three separate auto factor sources.

References: K13 Micra diagnostics code P0031 at DuckDuckGo

K13 Micra Oxygen Sensor Prices at DuckDuckGo

Good luck & let us know how you get on?