Subject is a 1981 2.0L air cooled.

The fuel pump & fuel pump relay have been bench tested and are good.
However when they are installed in van the fuel pump does not receive
current to actuate.

The fuel pump ground wire tests good & continuity of positive wire from
f/p to f/p relay tests good.

Any suggestions?

Also, I'm curious where the f/p ground wire attaches to the body.