What does code P1403 mean on Audi vehicles?
A deviation in exhaust gas recirculation flow has been detected.
OBD-II Code Audi
P1403 — Audi — EGR Flow Deviation
A deviation in exhaust gas recirculation flow has been detected.
Common symptoms
- Irregular engine operation.
Possible causes
- Clogged or faulty EGR valve.
Initial recommendation
Clean or inspect EGR valve.
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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