P2098 Post Catalyst Fuel Trim System Too Lean (Bank 2)
What does P2098 mean?
P2098 — Post Catalyst Fuel Trim System Too Lean (Bank 2) (bank 2). This is an OBD-II diagnostic trouble code a scanner retrieves when your vehicle's computer detects post catalyst fuel trim system too lean (bank 2) on bank 2. The level of risk depends on how the vehicle is currently running and how long you've been driving with the light on.
Common causes of P2098
- Exhaust leak ahead of the bank 2 catalyst
- Failed bank 2 downstream oxygen sensor
- Bank 2 catalyst condition
- Bank 2 fuel system fault
How to fix P2098
- Inspect bank 2 exhaust for leaks
- Compare bank 2 downstream sensor and trim data to bank 1
- Check bank 2 specific sensor operation
- Verify catalyst efficiency on bank 2
- Repair the identified leak, sensor, or fuel issue