What does code P1123 mean on Audi vehicles?
Long-term fuel trim additive air correction indicates a rich condition on Bank 1.
OBD-II Code Audi
P1123 — Audi — Long Term Fuel Trim Additive Air Bank 1 System Too Rich
Long-term fuel trim additive air correction indicates a rich condition on Bank 1.
Common symptoms
- High fuel consumption.
Possible causes
- Faulty injectors or MAF sensor.
Initial recommendation
Diagnose air-fuel mixture and sensors.
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
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