OBD-II Automotive Error Code P0199: How to Fix It

Q: Can I drive with error code P0199?

It's not recommended. An intermittent oil temp sensor can cause incorrect fuel mixture, poor performance, and potential engine damage if the issue worsens.

Q: How much does it cost to fix P0199?

DIY cost is $30-$80 for a new sensor and O-ring. A mechanic may charge $150-$300 including labor and diagnostics.

Q: What does 'intermittent' mean in P0199?

It means the sensor signal is erratic or drops out temporarily, often due to a loose connection, corroded wiring, or a failing sensor.

Q: Will clearing the code fix P0199?

Clearing the code only erases it temporarily. The code will return if the underlying issue (bad sensor, wiring, etc.) is not fixed.

Q: Are there any related codes to P0199?

Yes, P0196 (sensor range/performance), P0197 (low input), and P0198 (high input) are directly related.

Abstract

Error code P0199 indicates that the engine oil temperature sensor is sending an intermittent signal to the ECU. This can cause erratic temperature readings, poor fuel economy, and potential engine damage if ignored. Most fixes involve checking the sensor circuit and replacing the sensor if needed.