2
No, Dodge doesn't use maf sensors.
oxygen sensors or O2 sensors
2
Two
There are four.
They are on both sides of the catalytic converter.
Either sensor can fail.
in the exhaust pipe just below manifolds
The oxygen sensor is mounted in the exhaust down-pipe
if it's a four cylinder, it has two. if it's a six cylinder it has four.
Yes, although some of the sensors will need swapped.
How many oxygen sensors are there for a 2001 Chevy Tahoe 5.3L