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.
Horch A4 8K CJCD
Golf 7 DDYA
(+ Audi 80 Avant B4 1Z 475Tkm - habe ich vom ersten bis zum letzten Tag gerne gefahren)
(+ Passat Variant 32B CY 400Tkm)
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.