Where is the oxygen sensor located on the 2005 nissan quest.

Question

I have a p1273 code on the 2005 nissan quest. it is related to heater bank 1.

Answer 1

Hi there,

This is the O2 sensor on the back of the engine closest to the firewall. To get to it you need to remove the cowling and wipers. This is in the top of the converter.