Where is the O2 sensor on a Nissan Maxima?
All Maximas are 6 cyl. Most have one O2 sensor for each bank
located on the exhaust manifold. Many have a 3rd sensor after the
Catalytic convertor. This one often goes first. 89-94 Maximas have
one. 95-98 have three, two fronts B1 and B2 and one rear. 99 and
00-03 have four, B1 and B2 front and rear. 04 and up have 2 air
fuel ratio sensors and 2 rear 02 sensors.
Click here (the TSB's on O2-sensors have diagrams for the
locations and descripions of the individual sensors).