1995 6.5L electric fuel pump/oil pressure sender circuit

[ccole]

Hello all-
I just picked up a 1995 6.5 diesel, 1/2 ton, non-turbo diesel. It is a pretty sharp old truck and thought it was kinda somthing different since it had the non-turbo diesel engine. Anyways..., it has some issues that I have been straightening out, but had a question regarding the oil pressure sender circuit that energizes the electric fuel transfer pump. I remember on some of the later 6.2 diesels, people would do a conversion that would make it so the fuel pump would run whenever the keyswitch is on, rather than waiting for oil pressure to build and engergize the fuel pump. Does anybody out there know for sure which color of wire and where it is located so I can try this conversion (i am aware of the liablity/safety issue involved in doing this conversion). I would like to see if it would make any difference. Thank you in advance!!