Oil dummy light?

[Mischif]

So i either have a bad sensor or a wiring issue. I've never had a dummy sensor fail like this before but eventually after the cars up to operating temp and its been driven for a while my dummy light starts to go off at idle. Quick side note, no idle controls so the rpms drop pretty low when i clutch in to stop. So at first the light starts going off when the idle dips to 500-600 and eventually it'll start going off at around 800-1000. I've already hooked an oil pressure tester up and oil pressure is fine. Has anyone else had a dummy light sensor fail that way?

 

[NOSLO2PT0]

So what’s your oil pressure at idle when cold and when it’s up to operating temp? What weight oil are you using?

 

[BLACK'98DSM]

Definitely sounds like the oil pressure sending unit, if oil pressure is good.