MasterTuning Fault code dictionary (DTC)

P0172 — Rich mixture, bank 1

Severity: Attenzione Can you drive? Sì, no known limitation Produttore: Tutti makes (OBD-II standard)
MeaningIl tuo Motore computer detected too much fuel and not enough oxygen in the exhaust gases for the Prima Cilindri bank. This means the engine is running rich, which washes oil Da cylinder walls and ruins the catalytic converter over Durata.
FamilyPowertrain (P)

Typical symptoms

Strong smell di unburnt fuel Da the exhaust
Black smoke Da the tailpipe under acceleration
Motore hesitation or rough idling when stopped
Noticeable Aumenta in fuel consumption

Common causes

Dirty oppure failing mass air flow sensor
Stuck oppure leaking fuel injector
Faulty oxygen sensor giving a false Lettura
Blocked oppure restricted air Filtra

What a do

Have a technician check the mass air flow sensor and fuel trim live Dati as soon as possible. Continuing a drive with a rich mixture can permanently damage Il tuo catalytic converter and spark plugs.

Domande Frequenti

What does code P0172 mean?

Rich mixture, bank 1. Il tuo Motore computer detected too much fuel and not enough oxygen in the exhaust gases for the Prima Cilindri bank. This means the engine is running rich, which washes oil Da cylinder walls and ruins the catalytic converter over Durata.

Can I keep driving with code P0172 Attivo?

Sì, no known limitation

Common causes — P0172

Dirty oppure failing mass air flow sensor Stuck or leaking fuel injector Faulty oxygen sensor giving a false Lettura Blocked or restricted air Filtra

How do you fix code P0172?

Have a technician check the mass air flow sensor and fuel trim live Dati as soon as possible. Continuing a drive with a rich mixture can permanently damage Il tuo catalytic converter and spark plugs.

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