The system downstream of the catalytic converter is running lean.
Informational only. Consult a qualified mechanic.
Check for exhaust leaks and O2 sensor function.
The P2096 OBD-II diagnostic trouble code (DTC) indicates: post catalyst fuel trim system too lean b1. This is a medium-severity powertrain code that your vehicle's onboard diagnostics system triggers when the system downstream of the catalytic converter is running lean. If your check engine light is on with this code, the vehicle is generally safe to drive, but you should have it inspected soon.
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