Yea, I have an idea. You should have read this forum sooner
There are several threads here about the bulkhead connector just behind the driver's seat. This is a cable connecter that carries the wires for the fuel pump (hot & ground), the evap purge cansister, the fuel gauge and the intank fuel pressure sensor.
The van collects water (spilled pop, wet feet, whatever) and holds it under the carpet. This dampness rots out the connector where all those wires pass though.
You can check that this is the problem by jacking the van up a bit, and getting your head under the van just behind the driver's seat. Look up near the edge of the van and you will see the multipin connector plugged in up there. Unplug it and have a look at the pins inside to check for corrosion. There are two connectors close by. The one farther back is for the tail lights and optional air compressor, you want the one more forward. They are about 3 feet apart. Look right behind the driver's seat.
Do this when the van is parked and you don't have to move it for a while cause if that connecter is as bad as mine was, it won't be running until you fix it.
There is no special ground for the fuel pump by the way, not that would cause the motor to stop running or burn up. The only power wires to the pump are the two that run through that connector.
If your check engine light comes on with an Evap code all the time, this is also the first place to look.
Good luck