I have been going trough some DPF topics, but it seems there are still many unknowns to this and I couldn't find any definite answers.
So I'm having my vaporizer give up slowly in the last few weeks, but since I can only make it to the garage for replacement in a few days, I've been monitoring the DPF with Forscan lite, to make sure I don't end up clogging it.
I've also been curious for some time in what state my DPF might be.
So my latest journeys have bee quite short. 40km/day, 20km one way, shut the car off, then 20km back (main roads, no city). With this type of drives I get a regen every 130-200km.
After a regen the DPF_LOAD would be around 50% and the DPF_SOOT_LD at 25%.
The DPF_SOOT rises at a constant rate while the DPF_LOAD sometimes drops, then climbs back...but always staying a bit higher than the DPF_SOOT. As the LOAD reaches 81% the SOOT is 75% and it triggers a regen, exhaust goes up from around 250 to 600 degrees and brings the SOOT back to 25% and the LOAD to around 50%. But as mentioned the LOAD will climb or drop while the SOOT goes only up.
Now DP_DPF is 0.0 at idle, 2.0 at 2000rpm wih no load. And during constant driving it's 3-4 kPa bellow 100km/h, 7-8 kPa at 140km/h in 6th gear and max I've seen on full throttle I think was something like 16-18 kPa. These don't change much at all even if it's near regen point, maybe 1kPa across the board as it get's full.
I will be changing the vaporizer as I got a P244C exhaust temp too low for regen one day. I have to monitor when it's doing the regen and keep in a lower gear with revs up to help it make the 600 degrees.
But my question is about the above data I've noticed during the monitoring. Does it look like the DPF is still in good shape?
My engine is 2.0/163ps
Edited by radulescu21, 17 November 2020 - 10:54 PM.