P0402Średni
Układ EGR — nadmierny przepływ
Układ napędowy
Sprawdź szczegóły →P0401V
ŚredniEGR — Insufficient Flow (VAG-specific)
OBD-II (EN): EGR Flow Insufficient
Code P0401V — EGR — Insufficient Flow (VAG-specific). Symptoms: check engine light. Possible cause: clogged EGR valve with carbon (frequent problem in 1.9/2.0 TDI). Professional diagnosis recommended.
Symptoms
Check engine light, slight jerking, increased emissions, uneven idle
Possible causes
Clogged EGR valve with carbon (frequent problem in 1.9/2.0 TDI), faulty EGR stepper motor, clogged EGR cooler
Affected systems
Related codes
Universal version
This code has a universal OBD-II form:
P0401Recyrkulacja spalin (EGR) — niewystarczający przepływSuggested Hybspec services
Based on the systems affected by this code, we will most likely start with:
Tags and synonyms
Does code P0401V require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.