Oil pressure light comes on at idle

[TylerGenny]

My 2016 genesis 3.8L just had an oil change and now when I’m at temp the oil pressure light comes on, and I’m scared Imma have to rebuild this engine because I just financed this car 3months ago with no warranty.
I’m hoping it’s just a sensor, if my oil pressure was actually low there would be SOMETHING noticeable going on right?

 

[5.0KDM]

Have you checked your dip stick? Have the codes pulled.

 

[TylerGenny]

Have you checked your dip stick? Have the codes pulled

 

[TylerGenny]

I’ve already had my codes pulled, there’s none to do with my engine, just a catalytic code I’ve been known about

 

[TylerGenny]

Oil is at spec and correct viscosity, and oil is very clean, no metal flakes or anything dumb

 

[TylerGenny]

Oil is at spec and correct viscosity, and oil is very clean, no metal flakes or anything dumb

And it only occurs when engine is warm

 

[5.0KDM]

Oil is at spec and correct viscosity, and oil is very clean, no metal flakes or anything dumb

My guess would be the sensor is shot. I would start there

 

[TylerGenny]

My guess would be the sensor is shot. I would start there

just got back from the mechanic, oil pressure is great, so yeah it’s the sensor
I literally cried when I saw it come on, especially since I do NOT have the money rn for a rebuild, and i could do without another bill rn
Thank you

 

[Dagcarson]

My vehicle is a 2018 G80 Sport 3.3t with 100k miles
My car as at the shop right now. At idle, especially on cold days, the oil pressure light would illuminate. This would go away once i started driving and only come on again once i stopped at a light or drive through.

The dealership ran a diagnostic and determined that the sensor was fouled due to sludge on the sensor. My third party warranty covered the repair because the dealership said they reported it as "faulty" and not due to sludge.

Its about a 900 dollar job to replace the sensor. Hope this helps.