A6 2.7 BPP P242F - 001 - Maximale Beladung überschritten | Posts 16+

16-07-2017, 12:59 Subject:

Quote:

Since CR engines with DPFs typically achieve smoke emission limits through the LD system,...

"It surprises me that the smoke limit isn't linked to the fresh air intake or the residual oxygen level. You can also achieve high intake manifold pressure with a high EGR rate."
hg
Herbert.

16-07-2017, 13:12 Subject:

For the 4-cylinder engines, it might be that the lambda value is still being taken into account. I'm not sure about the 6-cylinder engines.

Even in diesel engines with a DPF (Diesel Particulate Filter), the smoke reduction is achieved through the LD (Lean NOx Trap) system.

18-07-2017, 22:39 Subject:

Yesterday, I briefly had a Q7 3.0 TDI error message displayed on my VCDS.
A new DPF (Diesel Particulate Filter) was recently installed, but I don't know if the oxygen sensor is working properly.
However, the bit pattern is the same (11001001), and the lambda value was also 1 after the startup.
I might get it back in my hands again next week, and then I'll take a closer look at it.