Just one and its located right in the middle of the front of the motor.
There is 2 oxygen sensors on the 2002 Nissen altima
This particular model has two oxygen sensors . The first is on the intake manifold facing the radiator and the other is under the vehicle on the exhaust pipe .
it has two one in front of engine another one underneat in the muffler pipe
All O2 sensors are threaded into the exhaust system at various points.
where is the oxygen sensor in a 1998 Nissan altima 2.4gxe
There are two oxygen sensors on a Nissan Sentra. This vehicle is an ultra-low emission car, thus needing only two oxygen sensors.
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 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.
1 is on the intake manifold and the 02 sensor is right befor your cataylic converter
You have 2 sensors 1 is located in front or back of the catalytic converter and one is located in front of the vehicle where the muffler is located. They call oxygen sensors.
The oxygen sensors are located in the exhaust pipes.
four