OBD-II code · Powertrain (generic, extended)
P2D91 Engine Oil Pressure Sensor/Switch C Range/Performance
The ECM detects a range/performance fault on the engine oil pressure sensor/switch c. Reading cannot be used reliably for control.
Is it safe to drive with P2D91?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor characteristic drifted
- PossibleSensor mounting displaced
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Engine Oil Pressure Sensor C, Wiring Harness, Ecm
Related codes
- P2D8EEngine Oil Pressure Sensor/Switch C Circuit
- P2D8FEngine Oil Pressure Sensor/Switch C Circuit Low
- P2D90Engine Oil Pressure Sensor/Switch C Circuit High
- P2D92Starter/Generator Phase X Current Sensor Circuit High
- P2D93Starter/Generator Phase Y Current Sensor Circuit High
- P2D94Starter/Generator Phase Z Current Sensor Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.