Citroen C elysse 1.6HDI EDC17C10 black smoke/lambda problem?

[smotorsport]

Hi I have a problem with psa edc17c10. Car mileage is 50000km and smokes black a lot. DPF is still in place and working properly (regens and not a lot of differential pressure) EGR also works, no errors in ecu no limp mode, just a lot of black smoke. It was a test car in citroen dealership and then they sold it at 1000km mileage and there was a problem with limp mode. So they didnt know what to do and updated ECU - from then no limp mode but a lot of black smoke - can't pass emissions. Lambda values when on full load go down to 0.75 0.89 which I thin for car with DPF is way too low, so I read the ecu with ktag but can't find normal lambda limiters like in other edc17. Can someone tell me if this ecu has some or it uses the strange maps with NM in z axis for some kind of lambda limitation. Also compared with similar file from 1.6hdi 92hp and duration looks the same also those strange "smoke limiter" maps. I attach the dump I read if someone have ori with same sw and sw upg can upload here or compare it. Or if someone has some idea what could be wrong with this car. Thanks.
PS. All real time data like desired and actual turbo pressure etc. are perfect, nothing wrong - just that black smoke...
Citroen C - Elysse MY 2014 1.6HDI 92hp EDC17C10
HW: 9666077280
SW: 9666729580
SW upg: 9691599380

[ecutuning04]

Maybe injectors are bad?
Check on table.

Wysłane z mojego SM-N970F przy użyciu Tapatalka

[smotorsport]

Maybe injectors are bad?
Check on table.

Wysłane z mojego SM-N970F przy użyciu Tapatalka

Well this is my next step Will be doing it tommorow but I Just wanted to check if someone had similar issues...

[smotorsport]

Injectors sended for bench testing so I'm waiting results. But can anyone tell me what type of smoke limiter uses this ecu. As I said I dont see normal lambda maps like in other edc17, just some with torque Z axis... Maf smoke limiter?

[richirich]

Hi, Have similar issues with Peugeot 2008 EDC17C10 3kk miles 2014 car high soot on initial acceneration but clear at full acceleration! checked cleaned dpf egr all clear and working starting to suspect injectors did you have any joy with yours?

[br556hre]

cracked intake manifold possible..