The upstream oxygen sensor is located in the exhaust pipe between the exhaust manifold and the catalytic converter The downstream oxygen sensor is located at the catalytic converter outlet
there are two located on the y pipe prior too the pre cats and one more in the rear converter
where is bank one sensor 1 located on 2001 maxima Bank 1 sensor 1 is located at the upper front left hand side of the motor. My 01 20th anniversary edition has 4 sensors. Just recently replaced all 4.
The 2005 Nissan Maxima is equipped with four oxygen (O2) sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. These sensors play a crucial role in monitoring the exhaust gases and helping to optimize engine performance and emissions.
There are four oxygen sensor in a Maxima 2001. See Nissanhelp.com for a diagram location.
All O2 sensors are threaded into the exhaust system at various points.
Check this site out, it shows you. http://www.nissanhelp.com/diy/maxima/projects/nissan_maxima_o2_sensor_identification.htm
I'm getting terrible gas mileage and i need to know how many are in the vehicle.
in the exhaust manifold. is there any place to buy a used one?
one
There are two oxygen sensors on a Nissan Sentra. This vehicle is an ultra-low emission car, thus needing only two oxygen sensors.
Just one and its located right in the middle of the front of the motor.
There are 2 oxygen sensors on an 04 frontier pickup 2.4litre. One is located after the catalytic converter (on the exhaust Pipe) and the other is between the exhaust manifold and the catalytic converter.