Re: where do I plug the two pin plugs from the VRO
Wires from the VRO should mate up with wires from the VRO tank.
Maybe we're talking about the same thing, but if I'm right in assuming that when you say "VRO" you're referring to the fuel pump, the above is incorrect ...
The 2 prong plug that comes from the tank mates with a corresponding plug from the engine, not the VRO/OMS pump. If it's an original 1991 set up, that 2 prong plug should have a tan wire and a black wire. In the corresponding plug coming from the engine, the black wire goes to ground, the tan wire goes to the alarm. If you don't have a corresponding plug like that, you can connect the tank's tan wire to a tan wire on the engine any way you want (e.g. crimp connectors, bullet connectors, etc.). The black wire is simply grounded.
The "VRO" (VRO/OMS fuel pump) has its own plug (probably 4 wires, but could be 3) that mates up with a corresponding plug coming from the engine as well.
Therefore, there's no wires that connect the VRO/OMS pump to the oil tank. Both have wires that connect to corresponding wires coming from the engine.
MudLake take a look at this article, it might help you get oriented to the system:
http://continuouswave.com/whaler/reference/VRO.html
IF this doesn't make sense, post some pictures of exactly what you're talking about and it should be easy to advise.
