wire in a line test plug ?

[EA82GT]

I think I am going to try to remember to wire in a lonely old plug into my install to test each circuit - much like I find assembly line end check plugs about my old 80s Subaru's. The more I read these posts, I think it could be a wise idea - so long as nothing shorts them out like a test tacho I had rolling about the floor. That was fun, yet an easy fix

Gosh, the installation section is looking abandoned !

[brentp]

What is a "lonely old plug", exactly?

[EA82GT]

What is a "lonely old plug", exactly?

One with no mating connector plugged in
My old mid 80's Subaru had a few of them scattered about the place. They feature in the manuals diagrams etc and I believe their purpose is initially on the assembly line to ensure each wire has what it is supposed to have. And possibly later in life as a diagnostic access port - prior to OBD

So, my idea is to add same to the conversion wiring so no back probing, no needle pricking wire insulation etc

Further to the theory is if I have it, won't ever need it