Okay, let's break down those two trouble codes:
These error codes (P0159, P0160) relate to problems detected by your car's engine control module in one or more oxygen sensors located *after* the catalytic converter. These are downstream sensors that help monitor emissions and ensure your catalytic converter is functioning properly.
Here's a breakdown of each code:
| Code | Description |
|------|-------------|
| P0159: Aging/Poor Performance - Bank 2, Sensor 2 | This indicates an issue detected by the PCM in one specific downstream O₂ sensor on **Bank 2** (usually cylinders opposite cylinder #1). |
### Key Points
* These are serious engine performance codes that require attention.
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, especially if there's a possible exhaust leak between bank 2 upstream sensor and the catalyst.
