R32 Rb25Det Low Oil Light

[dark.sky]

Hey guys, my R32 has had an R33 RB25DET in it for about 4 months, and everything has been great. However, whilst driving last week, the low oil light suddenly came on. Naturally I checked the oil level straight away, and it was fine. When I first noticed it, the oil pressure gauge was reading where it always would too. When you first start the car, it’s off, but give it 5 minutes and it comes on - and from there won’t go off. My mechanic removed the sensor and cleaned it, but this did not fix it - they were flat out, squeezed me in to replace the rear HICAS arms, but you get the idea. Below is a picture of the gauge, with precisely what happens. The oil pressure gauge appears to work fine still - it moves between about 3.5 and 5kg depending on the way it’s driven. Now what I can't for the life of me remember, is if there is just the oil pressure sender, or an oil pressure sender, AND an oil pressure switch. If it’s the latter, I guess I should replace that switch, but if there is only one, could it be a cluster issue perhaps? Some people would say just leave it, but I’m not keen on getting accustomed with warning lights on my dash, because I may miss one which shouldn’t be ignored. I am planning on running an aftermarket gauge, but I'd rather fix these issues as they come. Any help would be greatly appreciated

[blind_elk]

Pretty certain the switch is in the same unit as the sender.

Have you checked that the wires into the sender / switch are still intact?

[Moodles2]

Fairly certain the oil pressure switch (idiot light) is independant of the oil pressure sender

[dark.sky]

Okay so I drove the car tonight, gave it a hell of a beating (I live in the country) and it didnt flash on, even once, never lone staying on permanently. Weird. First time it hasnt been on in days...

[Simon-S14]

switch for light and sender for gauge are in the one and same unit.

could be faulty.. normaly with 32's the gauges read false but the light works fine.

i'd replace with with another sender unit to be sure.

[yogibear]

frist problem would be you trusting the stander oil gauge......

every one knows they can not be trusted but if ur been out driving it , i am sure the pressure would be ok just some thing to think about