P2096: Post Catalyst Fuel Trim System Too Lean Bank 1
MediumPowertrainFuel Metering
What does P2096 mean?
P2096 is a diagnostic trouble code indicating "Post Catalyst Fuel Trim System Too Lean Bank 1". The catalytic converter in your exhaust system is not converting harmful gases as efficiently as required. This affects emissions and may indicate the converter is failing or there is an upstream issue.
Common causes
- Vacuum leak (intake gasket, hose, or PCV valve)
- Weak or failing fuel pump
- Clogged fuel injectors
- Dirty or faulty mass airflow (MAF) sensor
- Exhaust leak before the O2 sensor
What should you do?
Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.
Get a diagnosis for YOUR car
Code P2096 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.