correct. I have a permanent wire grounded to my firewall that I use for the tests. a ground from the battery is best, im just too lazy to change it. key must be on.

 

Yes, just ground it.

Slow, I was on the other site.

 

The problem is you have the pump running backwards.
The orange wire is a ground wire and not power to the pump as you have it.
What you are calling a black wire with a white stripe as a ground wire is a brown wire with a white stripe and that is the power to the pump.

 

There you have it, fresh eyes see things. Thanks Bill.

 

Running on two tanks like a big dog now! Thanks so much for solution.