2,0 TDI BPW Pumpe Düse A4 B7 rußt trotz Partikelfilter | Posts 24+

chli1976 wrote:

When I have time, I will upload the corresponding characteristic curves.

It's late, but it's here.

Okay, thank you. However, my knowledge is not sufficient for the interpretation of that .
By the way, I was at the chip tuner, and it seems there's some software installed.
I now have an appointment for a vote in 2 weeks.

Do you even still have a DPF installed, if it's producing that much soot?

No, that one's out. Replaced it with the Kat from the 16v model.

That brings us to the next question: the lambda sensor is no longer an option.

As far as I know, this component only has the task of controlling the AGR (Abgasrückführung) rate and doesn't influence the air-fuel mixture... is that correct?

He runs anyway, even without idling.
The symptoms mentioned, including increased fuel consumption, insufficient top speed, and excessive soot, were already present before.

MrMcFly79 wrote:

no, he's out. Replaced it with the Kat from the 16v model. That brings us to the next question: the lambda sensor is no longer an option. As far as I know,

her only task is to monitor the AGR rate, and she has no influence on the air-fuel mixture...
Hi, I'm not entirely clear on that either. I've read the documentation about it, and it's described in a very vague way there as well. Control and mixture adjustment.
Okay, so far as I understand, it's only relevant for the AGR.

Best regards, Rainer.

Hello,

With the lambda sensor, the oxygen content in the...
Exhaust emissions are measured over a wide range.
will be. In connection with diesel particulate filters...
The filter system uses the engine control unit.
Signal from the oxygen sensor for precise calculation.
the quantity and timing for the follow-up.
injection during the regeneration process. For a...
Effective regeneration of the particulate filter is a...
minimum oxygen content in the exhaust gas during a...
It requires a consistently high exhaust gas temperature.
This regulation is governed by the signal from the Lambda-…
probe in the context of the signal.
Temperature sensor located before the turbocharger.

Best regards, Dago.