Depending on the make of the car/truck, the O2 is usually located in the "Y" pipe behind the exhaust manifold or if you have duel exhausts, one on either side, both sides. Some commonly refered to as "secondary" are located just after the Cataletic converter or in the resonator. There are also a few that have them located in the muffler flange.
The oxygen sensor bank 1 is located in the exhaust manifold. The oxygen sensor bank 2 on the 1996 BMW 328is is located in the head pipe.
its located in the back of the motor.
Bank 2 Sensor 2 is passanger side after cat.
Oxygen sensor is located at the exhuast Manifold.
before cat
The front oxygen sensor is located on the exhaust manifold of the BMW 318ti. The rear oxygen sensor is located in the head pipe.
bank 2 sensor 2 is the passenger side, rear sensor, it is located behide the catalytic converter.
The Bank 2 Sensor 2 Oxygen Sensor on a 2004 Nissan Titan can be found on the exhaust manifold of the passenger side of the engine. It is located between the catalytic converter and the exhaust manifold. It is also known as a downstream or post-catalyst oxygen sensor.It is located between the catalytic converter and the exhaust manifold.It is on the passenger side of the engine.It is also known as a downstream or post-catalytic oxygen sensor.
exhaust pipe
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
After the catalytic convertor. Sensor one is before the convertor.
behind the catalytic converter