You should be able to find a shop manual at your local library with the right info...make copies as they are usually only in the REFERENCE section....good luck:) It's right next to the engine and transmission, where they bolt together. It looks like any other starter. You can start from the fuel filter and look up.
A diagram of a 1991 Toyota starter relay switch can be obtained from most Toyota dealerships. The starter relay diagram can also be found at most auto-parts stores.
The starter on a 1991 Toyota Tercel is located in the front of the engine. It will be located on the left side.
Under the dash behind the cruise control actuator, or so I have read.
The location for the idle switch of a 1992 Toyota Previa mini van can be found in the Toyota Previa Auto Repair Manual 1991 thru 1995. This can be purchased from the Toyota dealership.
There is no cabin ari filter on a 1991 Totyota Previa
Look underneth right beside the shaft going to the front
Turn the key to acc. and push the plunger in located on the Ignition lock housing
it weights 5.410 pds
www.autozone.com
it has a 2.4li engine size for gasoline
.....still lookin'
Fuse block in engine compartment right side.