Low oil pressure message?

2012 VOLKSWAGEN CC
104,000 MILES • 4 CYL • TURBO • 2WD • AUTOMATIC
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BHAMDOC1973
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Pretty much most of these VWs and Audis have same issue of this message. Some i am aware of are due to engine parts clearance, others are oil and filter while others the sensor. How many volts should i get at the sensor with ignition on and engine off? And how much should i get for oil pressure when cold idling and then at 2,000 RPMs?
Dec 2, 2023 at 2:11 PM
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JACOBANDNICKOLAS
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Hi,

Have you checked for diagnostic trouble codes? Also, they don't provide us with the specific voltages for testing. Instead, it requires a specific fuel pressure gauge.

As far as a power signal voltage is concerned, I would suspect it to be 5v.

I attached the directions below for testing. Take a look and let me know if you are comfortable performing them.

Let me know.

Joe

See pics below.
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Dec 2, 2023 at 8:40 PM
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BHAMDOC1973
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Drained oil, was black, pressure sensor had oil on connector and inside around the pins, its bad, ordered another, will see.
Dec 7, 2023 at 12:11 PM
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JACOBANDNICKOLAS
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Hi,

Absolutely, if you have oil in the connector, that indicates the sensor is leaking inward which lowers oil pressure.

Let me know if it takes care of the issue. I am somewhat confident it will.

Take care,

Joe
Dec 7, 2023 at 8:23 PM