What usually causes it
- A failed oil pressure sensor or switch
- A damaged wire or a loose, oily plug
- Low oil level
- A real oil pressure problem inside the engine
P0520Starts at: Get it checked this week
Oil pressure sensor circuit problem
The oil pressure sensor tells the car how well oil is moving through the engine. The computer found a problem with the sensor or its wiring, so it cannot tell whether the oil pressure is good.
Check this first
Check the oil level with the dipstick, on level ground with the engine off. If it is low, add the right oil and have a shop look at it.
What to watch for
- The oil warning light is on or flickering. Pull over and turn the engine off
- Ticking, tapping or knocking from the engine
- A burning oil smell or blue smoke
Can I keep driving?
We rate P0520 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about P0520
What does P0520 mean?
Oil pressure sensor circuit problem. The oil pressure sensor tells the car how well oil is moving through the engine. The computer found a problem with the sensor or its wiring, so it cannot tell whether the oil pressure is good.
Can I keep driving with P0520?
We rate P0520 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes P0520?
The most common causes, in order: A failed oil pressure sensor or switch; A damaged wire or a loose, oily plug; Low oil level; A real oil pressure problem inside the engine.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.