P0159 Aging of oxygen sensor after catalytic converter P0160 Oxygen sensor after catalytic converter
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 c...