What does code P1164 mean on BMW vehicles?
The additive fuel trim per ignition event on bank 2 is lower than expected, indicating a lean correction condition.
OBD-II Code BMW
P1164 — BMW — Fuel Trim Additive Per Ignition Bank 2 Too Low
The additive fuel trim per ignition event on bank 2 is lower than expected, indicating a lean correction condition.
Common symptoms
- Rough idle
- uneven engine operation
Possible causes
- Air leaks in intake system
Initial recommendation
Inspect intake system for vacuum leaks and verify per-ignition fuel trim values.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine BMW code P1164 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands