Two
There are four.
V8, yes. Diesel, no.
No
any car after 1995 has two, or four oxygen sensors,as they use OBDII system
No.
A Dodge Caravan does not have a reset switch.
It only has one, and it is in the rear exhaust manifold.
There are 4. They are located on ether side of the catalytic converters.
Yes!
How to replace or change the 1997 Dodge Caravan 3.3 liter engine
Two. One before, and one after catalytic converter.
It is the sensor in the outlet of the catalytic converter.