What does code P1129 mean on Audi vehicles?
A persistent rich mixture condition has been detected on Bank 2 by multiplicative fuel trim.
OBD-II Code Audi
P1129 — Audi — Long Term Fuel Trim Multiplicative Bank 2 System Too Rich
A persistent rich mixture condition has been detected on Bank 2 by multiplicative fuel trim.
Common symptoms
- Check engine light illuminated.
Possible causes
- Faulty fuel injectors.
Initial recommendation
Inspect fuel injection system.
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.
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