Crankshaft position sensor location

In 1991 Tercel's did not have actual crankshaft position sensors. Engine speed is sensed via pick-up coils in the distributor. This information is sent to the ECU and used to determine crankshaft position and engine rpm. Crankshaft position is input through terminal G and engine rpm is input through terminal NE of the ECU.
Check the guide below on how to test wiring as well as the guide on how to use a volt meter. Also attached is the wiring diagram for the ignition system to help you figure it out.
Let us know what you find.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

It does not come with one. What no spark?

To my knowledge Toyota did not use a crank sensor in 1991 Tercel.