The sensor is between the cab and engine. its in the back of the engine not the front like many other vechiles.
It is screwed into the exhaust behind the engine.
It is mounted in the exhaust system. Start at the exhaust manifold and work backward toward the catalytic converter. It is more than likely mounted in the exhaust manifold right at the engine. It may also be mounted where the two exhaust pipes come together.
it shold be on the front or back of headers
I believe the O2 sensor heater is a fused circuit, you will need a wiring diagram to tell which one it is.
On the Exhaust manifond, drivers side
It is screwed into the exhaust manifold behind the engine.
Just below firewall on exhaust pipe.
its part of the exhaust system
It is screwed into the exhaust manifold on the rear of the engine.
It is located in the exhaust manifold.
on the rear exhaust manifold, directly behind the motor
It's located under the car on the exhaust pipe,probably has carbon build up on it. You can buy an o2 sensor tool from auto parts store