Find the oil pressure sending unit. Unplug the connector, spray electronic contact cleaner in the plug and sender. Blow dry with compressed air. That's what I'd do.
Oh yeah, at the moment I have no clue where it's located. I may be poking around wiring diagrams today anyway so if you don't find it I'll let you know if I found it's location.
color: anthrecite metallic
wheels: style 89 E66, 19X9F 19X10R
ext. lighting: 8000k D2S & LED plate light
*want to get sport rear diff*