Ellispeter2010
gas tank
From the inside of the trunk
??and what is it you wish to know??
A variety of options exist. See the Reatta forum http://www.reatta.net/. What is a riviera witch?
22/245/30
Front door: 5-1/4" circular
This is normal for electronic fuel injection.
If it's like all the Riviera models from '95 thru '99, it's under the rear seat, passenger side.
Some people just should not be allowed to work on cars.
under the back seat in a black box on driver side
Under the dash on the passenger side below govebox