Q: Q: Oil pressure sensor

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My check engine came on code p0521 I changed the sensor and the filter below it. I reset the check engine code and the check engine light keeps coming on with the same code p0521. Any help would be great!

My car has 120150 miles.
My car has an automatic transmission.

There are a few common reasons to get a trouble code for low oil pressure. There could be a low oil level, failed oil pressure sensor, a wiring problem, oil that needs to be changed, an engine that has worn to a point that oil pressure is low, or a wiring problem. Changing the oil and the sensor does narrow things down a bit, but there are still some possible causes, and it would be impossible to say what the problem is without doing some diagnostic testing, like putting a gauge on the oiling system to see exactly what the oil pressure is in the engine. If you feel you could use some help in diagnosing and/or repairing the issue, contact a certified mechanic, like the mobile mechanics at YourMechanic.com.

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