Having problems with your 2002 Nissan Sentra ?

P0155 o2 sensor problem

\015 What is bank 2 sensor 1? just need to know which of the 4 to replace.\015\012there are 2 on top 2 on bottom.. I've searched everywhere and don't want to replace the wrong one again..\015\012\015\012i have a 2001 nissan sentra 1.8l.\015\012\015\012any help would be great.\015\012\015\012i just want to know which exact sensor to replace.\015 Posted / edited by AnonymousUser on : 19-02-2018

Answers :

Its harness is third from left and has a white wire,its a (heated) four wire sensor. by looking down at engine from top you should see these sensors. you can track the white wire and see that it is under car, a 22mm wrench, or a sensor socket will do good to take out. use blaster or wd40 to make the task easier to take out! if in doubt, call any auto parts store and they should be able to set ya straight.
Repair Help & Product Troubleshooting for 2002 Nissan Sentra

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