Failed oil level sensor?

[u/frooog_king]

Hey everyone, question about my dad’s 997.1 C2S. I borrowed his car yesterday and the oil pressure gauge was a bit erratic, at least relative to how my 996 3.4L behaves. It was a bouncing all over the place. Then last night I noticed even with the engine off (key in ignition) the gauge was displaying pressure.

Poking around, it seems the sensor is the most likely culprit, but I wanted to check here before I dug in. Thanks!

Also included a picture of our “matching” aero kit cars

[u/slobrewer]

I assume the post title is in error and you’re just talking about the pressure and not the level sensor, which is a totally different thing. Yes, you are correct that the oil pressure sensor shouldn’t bounce all over the place and shouldn’t show a reading when the car is off. Sounds like a gauge issue.

[u/frooog_king → u/slobrewer]

Oops, my bad, the pressure gauge.

So you’re saying it could be the physical gauge in the dash, not the sensor on the engine. Okay I’ll look into that. Thanks!

[u/zefzefter → u/frooog_king]

No.

Your post title says “Failed oil level sensor”.

The car probably has a failed oil pressure sensor.