83 5kt oil pressure contr. unit

[Jpdstudio@aol.com]

I've got a "classic" (old) 5kt, actually love the car.  It has the typical bad
oil pressure control unit gone bad.  Tested the senders, installed mechanical
guage, pressure is great.  Due to the value of the car and my frugal nature,
I'd like to remove the unit.  I know now it in't in the dash cluster like my
vw's, but in the relay panel under the dash.  I just want the buzzing to stop.
Does anyone know whic one it is?  I've tried the random pull the relay, drive,
pull the relay, drive, pull the relay, drive until frustrated. 

Thanks ,  jeff