How to fix a P2097 engine code: Post Catalyst Fuel Trim System Too Rich Bank 1
A P2097 code is set when the downstream Bank 1 oxygen sensor reads a rich condition.
A Rich condition is when the air/fuel ratio is off, with more gas than necessary going into the engine.
The downstream oxygen sensor is monitoring the health of the catalytic converter.

Possible Causes of a P2097 Code:
Exhaust leak
Catalytic converter
Faulty oxygen sensor
Oxygen Sensor Wiring
Faulty Fuel Injector (Will Usually Get Other Codes)
Faulty Coil (Will Usually Get Other Codes)

The information in this video is based on the OBDII protocol definitions, manuals, and my own experience. Always pay attention to any other DTC codes as they may point to a different cause. If you have fixed this code and have information not provided let us know in the comments.
By using this information user assumes all risk of use.
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