What does code P1404 mean on Audi vehicles?
The basic setting procedure for the EGR system has not been performed.
OBD-II Code Audi
P1404 — Audi — EGR Flow Basic Setting Not Carried Out
The basic setting procedure for the EGR system has not been performed.
Common symptoms
- Check engine light.
Possible causes
- Incomplete calibration procedure.
Initial recommendation
Perform basic EGR setting using diagnostic tool.
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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