There are 4 in the exhaust system.
22
There is no such thing as an oxygen speed sensor.
Trouble code P0404 means: EGR Position Sensor Signal Performance
No
yes.
A 1998 Dodge Intrepid has a 17 gallon gas tank capacity.
You can not bypass it. The oxygen sensors are required for a proper running engine.
Regular.
5W30
Yes
yes
There are 2. one on each side of the catalytic converter.