There are two from what I believe. One is connected to the after converter and there is another one that is connected to exhaust manifold. I replaced these with BWD products and they made the car run alot better along with replacing cat. converter. good luck
2
It has 4 total.
The 5.2L has two oxygen sensors.
There is 2 oxygen sensors on the 2002 Nissen altima
The 2002 Toyota Camry XLE has four oxygen sensors. There are two sensors on the exhaust manifold ,and one before and one after the catalytic converter.
One
two
2
they have 2 o2 sensors on the muffler ELIA
there are 4 o2 sensors
THERE ARE 2
Four