Okay, let's break down those two trouble codes:
These error codes (P0197, P0198) relate to problems detected by your car's engine control module in one or more **oil temperature sensors**.
Here's a breakdown of each code:
| Code | Description |
|------|-------------|
| P0197: Engine Oil Temperature Sensor Low Input (Bank 2, Sensor 2) | This indicates the PCM received an abnormally low signal voltage from the oil temperature sensor located on **Engine Bank 2**. |
### Key Points
* These are serious engine performance codes that require attention.
* They relate to Engine Oil Temperature (EOT) sensors which monitor engine oil temperature, often linked to managing emissions controls and ensuring certain systems function correctly.
The user should be aware these are serious codes requiring professional diagnosis and repair. A mechanic is needed for proper testing using specialized tools like an OBD-II scanner or thermal couple tester on bank 2 wiring, especially if there's a possible exhaust leak between bank 2 upstream sensor and the catalyst.
