Where's this sensor on the van?

Factual Questions
1

Mechanic Dopers…Help, help

a 1990 Chevy 250 Van. (I Think it’s a 250) Anyhoo, I needs to know where a sensor is on or near the starter.
Do not ask why…'cause I don’t know

It’s not really my problem,(I don’t own one of those beasts) but since I have the source of the “Smartest people in the World” I told him I’d ask you all.

Thankee Rightly.

2

What kind of sensor?

3

In my component locator, it lists knock sensors as being in the engine block above the starter on 5.0 & 5.7 engines (on the left) and on 7.4 engines (on the right).

4

** Gary T** You are my hero! ** Cheek Kiss** Thank You.

Mods may close. Again Thanks.