P2096 — Post Catalyst Fuel Trim System Too Lean Bank 1
| Meaning | Your car's computer has detected that the exhaust gas on the passenger side is carrying too much oxygen after passing through the catalytic converter. This means the engine management system is struggling to keep the air and fuel mixture properly balanced. |
| Family | Powertrain (P) |
Typical symptoms
Engine might feel slightly sluggish when accelerating
Possible rough idle
Common causes
Faulty post-cat oxygen sensor
Vacuum leaks in the engine intake system
Fuel delivery issues such as weak pump or clogged injectors
What to do
Frequently asked questions
What does code P2096 mean?
Post Catalyst Fuel Trim System Too Lean Bank 1. Your car's computer has detected that the exhaust gas on the passenger side is carrying too much oxygen after passing through the catalytic converter. This means the engine management system is struggling to keep the air and fuel mixture properly balanced.
Can I keep driving with code P2096 active?
Yes, no known limitation
Common causes — P2096
Exhaust leak before or near the rear oxygen sensor Faulty post-cat oxygen sensor Vacuum leaks in the engine intake system Fuel delivery issues such as weak pump or clogged injectors
How do you fix code P2096?
You should have a technician inspect the exhaust system for cracks or loose gaskets near the oxygen sensors as soon as possible. Driving for a long time with an incorrect air-fuel mixture can eventually lead to damage to the catalytic converter.
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Contact usRelated codes
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- P2001 — NOx Trap Efficiency Below Threshold Bank 2
- P2002 — Diesel particulate filter (DPF) clogged
- P2003 — Particulate Trap Efficiency Below Threshold Bank 2
- P2004 — Intake Manifold Runner Control Stuck Open Bank 1
- P2005 — Intake Manifold Runner Control Stuck Open Bank 2
- P2006 — Intake Manifold Runner Control Stuck Closed Bank 1
- P2007 — Intake Manifold Runner Control Stuck Closed Bank 2
- P2008 — Intake Manifold Runner Control Circuit/Open Bank 1
- P2009 — Intake Manifold Runner Control Circuit Low Bank 1
- P200A — Component N15/3(ETC control module) is faulty.
- P200B — Component N15/3(ETC control module) is faulty.