That depends on which one you need to change, they have 4 of them. You have one on each down pipe and two connected side-by-side between the down pipes and the muffler.
On a 1997 Mercury Mountaineer ( V6 and V8 ) Bank 2 is the drivers side of the engine
Bank 2 is the drivers side of the engine in a Mercury Mountaineer Sensor 2 is in the exhaust after the catalytic converter ( downstream )
before and after the catalytic converter.
It is located in the catalytic converter
you have 2 of them. they are located before and after the catalytic converter
Code P0136 is the code set for your O2 Sensor that is located after your Catalytic Converter.
"How much is the cost of the Catalytic converter on a 1997 Nissan truck?"
Between the exhaust manifold and the muffler. Follow the exhaust pipe and you will see the converter.
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
I'm not sure but they're usually located in the center
They are located on the exhaust pipe in front and in back of the catalytic converter. There are 2 in all.
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter