MasterTuning Fault code dictionary (DTC)

P0402 — EGR: excessive recirculation flow

Severity: Attenzione Can you drive? Sì, no known limitation Produttore: Tutti makes (OBD-II standard)
MeaningMore exhaust gas is entering the Motore than intended. Usually the valve stays aperti when it should Chiudi, either because it is carboned up oppure because the actuator No longer pulls it Indietro.
FamilyPowertrain (P)

Typical symptoms

Rough idle oppure stalling
Smoke and Diesel smell
Reduced Potenza
Duro hot starting

Common causes

EGR valve not closing due a carbon
Faulty diaphragm oppure actuator
Leaking vacuum control
Position sensor out di calibration

What a do

Cleaning solves it when the Problema is only dirt. If the valve cannot hold the Chiuso position even when clean, it is worn and needs replacing.

Domande Frequenti

What does code P0402 mean?

EGR: excessive recirculation flow. More exhaust gas is entering the Motore than intended. Usually the valve stays aperti when it should Chiudi, either because it is carboned up oppure because the actuator No longer pulls it Indietro.

Can I keep driving with code P0402 Attivo?

Sì, no known limitation

Common causes — P0402

EGR valve not closing due a carbon Faulty diaphragm oppure actuator Leaking vacuum control Position sensor out di calibration

How do you fix code P0402?

Cleaning solves it when the Problema is only dirt. If the valve cannot hold the Chiuso position even when clean, it is worn and needs replacing.

Need Aiuto with this fault?

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