P0521 P0521 OBD-II Trouble Code: Engine Oil Pressure Sensor/Switch Range/Performance Diagnostic Trouble Code (DTC): P0521 P0521 code definition The P0521 code is defined as there being a fault with the engine oil pressure sensor/switch range/performance. What the P0521 code means...
A common failure in your vehicle is the oil pressure sending unit. Once the sensor is replaced, these codes should go away. I would ask for help from one of the mechanics at YourMechanic to replace your oil pressure sensor...
