The manifold is considered before the catalytic converter.
On the catalytic converter or exhaust manifold On the exhaust manifold or catalytic converter
There are 2...On the exhaust manifold and after the cat. converter
There are Two. One is on or close to the exhaust manifold and the other is after the Catalytic Converter on the exhaust pipe.
It is right below the exhaust manifold before the down turn of the exhaust pipe and before the catalytic converter.
There are 3 oxygen sensors; one in the front exhaust manifold, one in the rear exhaust manifold, one AFTER the catalytic converter. The 2 exhaust manifold sensors are the same BUT the catalytic converter one is different. Also, the 2 exhaust manifold sensors have heaters in them, while the converter one doesn't.
The 1998 Taurus 3.0 has four o2 sensors. There is one in each exhaust manifold, one in the exhaust just in front of the catalytic converter, and one behind the converter.
In the exhaust, close to the manifold(s)
Bolted to the exhaust manifold.
Between the exhaust manifold and the muffler. Follow the exhaust pipe and you will see the converter.
In the exhaust system between the exhaust manifold(s) and the muffler.
there are two cat one iswielded with the exhaust manifold and the 2nd is connected to the exhaust manifold with the o2 sensor leading to the exhaust.
Bank one sensor one is in the exhaust manifold on the back of the engine before the catalytic converter. Sensor two is screwed into the side of the converter.Bank one sensor one is in the exhaust manifold on the back of the engine before the catalytic converter. Sensor two is screwed into the side of the converter.