Powertrain
generic / SAE
P0521
Engine Oil Pressure Sensor/Switch Range/Performance
The engine oil pressure sensor or switch reports values that are not plausible for current RPM, oil temperature, and engine load. Could indicate a sensor fault or genuinely abnormal pressure.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 21
Possible causes
- Oil pressure sensor failed high
- Oil pump or bearings worn low
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 60–1500 €
- Estimated time: 0.5–6 h
- Component: oil pressure sensor
- Component: sensor wiring
- MIL / check engine light
Sources
References
sae:J2012