where are oxygen sensor located on 2002 nissan sentra 1.8
if you have code P0340 thats for Camshaft Position Sensor Circuit Bank 1.
Nissan Sentra does not have bank 2 oxygen sensor the car is inline 4 engine it only have one bank
the picture below is for the two oxygen sensors it has bank 1 sensor 1 and bank 1 sensor 2
https://www.autocodes.com/p0038_2002_nissan_sentra.html
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