So the only link I have found so far is to post here. So how do I ask a question on this forum?

 

Go to the FORUM section, scroll down and post a thread for your model and year of your Chevrolet.

 

So thanks to Mr. Oilcan,
However I am not allowed to start a thread. And I dont see a forum for 1993 g20 vans, I see astro van but i need electrical wiring info. So 1(cant post 2(where to go for 30 year old g20 van forum?

 

I'd try this for your G20 van Chevrolet Forum - Chevy Enthusiasts Forums > Current Chevy Trucks, SUV's, Crossovers & Vans

 

BTW, Welcome to Chevrolet Forum, Sportyvan.

 

Welcome to the forum.

 

The correct section is "Express & G-Series Vans"
It's in the name.