one
Look under the car and count them.
NO
One
after exhaust manifold, before catalytic converter.
Under the car connected to the exhaust pipe. Look under there and you will see the converters.
1 kilo
There should only be one.
The oxygen sensor on a 1996 Pontiac Grand Am is found near the catalytic converter. It will be place on the piping which leads to the catalytic converter.
02 Sensor? should be before the cat
its before the cat around the header area
4, two for each bank.
If it has a 2.5 V6 it does if its 4cyl. it may have a pre catalytic converter and a post converter