Three, one after each head and one after the catalyltic converter.
No, the O2 sensors are out of the "loop" until the engine warms up.
There are several O2 sensors on that vehicle and they are all threaded into the exhaust at various points.
There are two.
four
It depends on which engine you have. Give us more info.
There should be two O2 sensors on that vehicle. The O2 sensors are threaded into the exhaust system, one before the catalytic converter and one after the catalytic converter.
there are 4 o2 sensors
2 upstream and 2 downstream for a total of 4 O2 sensors.
all O2 sensors are threaded into the exhaust at various points.
2 if it has the 2.2 L engine, 3 if it has the 4.3 L engine.
All the O2 sensors are threaded into the exhaust system at various points.
There several O2 sensors on that vehicle and they are all threaded into the exhaust at various points.