Generally bank 1 is the side with cylinder number 1. Don't assume cylinder 1 is on the driver side as on many vehicles it is not. Sensor 2 would be downstream or post catalytic converter. Sensor 1 would be before the converter
Bank 1 is driver side on a 4.7L, so you are looking at downstream pass side.
There is one, in front of the catalytic converter.
Next the transmission passger side exhaust down tube after the (Y) in the exhaust tube.
There are a number of oxygen sensors on the 1997 Cadillac STS. These are found on the firewall, inside the exhaust manifold, and behind the catalytic converter depending on the engine model.
2/1 is the 2nd bank upper sensor. The 2nd bank is the side with the number 2 cylinder, in the case of the 4.7, the right side. The sensor you are looking for is the right side (passenger side) upper (before the catalytic converter) o2 sensor.
Two. One before, and one after catalytic converter.
The oxygen sensor on a 2004 Volkswagen Jetta is located in the engine area. It is usually encouraged to warm up the engine so as to ease the threads.
The oxygen sensors on a 2003 Dakota Quad Cab 4.7 are located in the exhaust system. One is before the catalytic converter and the other is after.
There is only one and it is screwed in to the catalytic converter on the pass side of the engine.
Screwed into the exhaust pipe, just behind the engine.Screwed into the exhaust pipe, just behind the engine.
It depends on number of cylinders the engine has. 4 cylinder engine has 2 oxygen sensors. V6 has at least 3.
A 2005 Chrysler Town and Country has two oxygen sensors that are in the exhaust on the rear of the engine.
The oxygen sensors on a 2004 Toyota Corolla are located within the exhaust manifold. They constantly monitor oxygen levels in the exhaust and allow the engine to make adjustments accordingly.