OBD-II code · Powertrain (generic)
P0199 Engine Oil Temperature Sensor Intermittent
The ECU detects intermittent dropouts on the engine oil temperature sensor circuit. Loose connector, chafed wiring or sensor failing thermally.
Is it safe to drive with P0199?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyConnector loose
- PossibleWiring chafed
- Less likelyConnector with intermittent contact under vibration
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Engine Oil Temperature Sensor, Sensor Connector
Related codes
- P0196Engine Oil Temperature Sensor Range / Performance
- P0197Engine Oil Temperature Sensor Low
- P0198Engine Oil Temperature Sensor High
- P019AO2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3
- P019BO2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 3
- P019CO2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 3
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.