MasterTuning Fault code dictionary (DTC)

P229F — Downstream NOx sensor: implausible signal

Severity: Attenzione Can you drive? With caution: limp mode possible, have it checked soon Produttore: Tutti makes (OBD-II standard)
MeaningThe sensor measuring nitrogen oxides after the catalyst is Invio a Valore the ECU does not consider credible. It is one di the most common faults on Euro 6 diesels.
FamilyPowertrain (P)

Typical symptoms

Motore Attenzione light on
AdBlue warnings
Reduced Potenza on some Modelli

Common causes

NOx sensor worn out by heat
Damaged wiring oppure water in the connector
Sensor control unit not answering on the bus

What a do

The NOx sensor is a wear Voce: needing one after a few years is Normale. Check the wiring Prima, though, because a corroded connector produces exactly the same code alle No cost.

Domande Frequenti

What does code P229F mean?

Downstream NOx sensor: implausible signal. The sensor measuring nitrogen oxides after the catalyst is Invio a Valore the ECU does not consider credible. It is one di the most common faults on Euro 6 diesels.

Can I keep driving with code P229F Attivo?

With caution: limp mode possible, have it checked soon

Common causes — P229F

NOx sensor worn out by heat Damaged wiring oppure water in the connector Sensor control unit not answering on the bus

How do you fix code P229F?

The NOx sensor is a wear Voce: needing one after a few years is Normale. Check the wiring Prima, though, because a corroded connector produces exactly the same code alle No cost.

Need Aiuto with this fault?

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