DPF questions

[Lucas_R]

In my treasure hunt for other DPF victims, there was someone else on this forum that was towing a trailer on holidays near Hay & had issues clearing the alarm. Wish I had saved it or could find it again.

I think this is what you are referring to: Amarok DPF issues

[Lucas_R]

I can not see any difference between a forced regen or an active regen as it would be the same process. I imagine the only difference for a forced regen would be because the soot % is too high & requires monitoring during the burn.

I was thinking it might be better to enable an active regen based on drivers awareness of the system & known travel route (for burn requirements) as opposed to blindly hoping your next drive matches the burn requirements.

I agree with this entirely. Before I had access to Carista and the ability to trigger a regen at my convenience, I found that if the car was left to its own devices (simply monitoring with VAGDPF) that it would always do a regen when I was 5 mins from home even though I had just spent 90 minutes on the freeway at 110kph coming back from Sydney. It was ALWAYS doing a regen when I was about to stop the car.

[GreyWolf]

Thanks Lucas for finding the link. I knew it was here somewhere. Good (or maybe not so good) to know that I am not the only person with unexpected DPF functions.

Do you use the Carista app with any OBDII Bluetooth connector? E.g OBDLink MX+

[Lucas_R]

Thanks Lucas for finding the link. I knew it was here somewhere. Good (or maybe not so good) to know that I am not the only person with unexpected DPF functions.

Do you use the Carista app with any OBDII Bluetooth connector? E.g OBDLink MX+

Apparently you can use it with a bunch of OBDII bluetooth connectors (such as OBDLink) but I use it with the Carista OBDII dongle.

I recently purchased the newly released "EVO" version which is faster to connect and just faster overall, but I also have the original Carista dongle (actually I have 2x original Carista dongles so if you wanted one you could buy one off me).

Full access to the Carista app is about $85 AUD per year, but you can purchase lesser timeframes if you want (like 1x day, 1x week, 1x month). But, honestly for $85 a year its worth it - even using it once or twice it will pay for itself.

Original dongle: Carista OBD2 Diagnostic Scanner – Android and iOS | AutoInstruct

Newly released EVO version: Carista EVO OBD2 Diagnostic Scanner '-' Android and iOS | AutoInstruct

[GreyWolf]

Questions for those using the VAG DPF app,

1. Anyone noticed -ve mg/km during normal travel? If so, under what conditions? (Excluding a regen cycle)

2. Any difference between measured soot mass vs calculated soot mass over the course of fill/regen cycle?


@Lucas_R: Do you swap back to VAG DPF when enabling a regen via Carista? I noticed Carista only monitors soot mass.

[Lucas_R]

Questions for those using the VAG DPF app,

1. Anyone noticed -ve mg/km during normal travel? If so, under what conditions? (Excluding a regen cycle)

2. Any difference between measured soot mass vs calculated soot mass over the course of fill/regen cycle?


@Lucas_R: Do you swap back to VAG DPF when enabling a regen via Carista? I noticed Carista only monitors soot mass.

No I dont use VAGDPF anymore because its for Android only and my little cheapy Andriod phone stopped working. I have an Apple phone, so using Carista exclusively for the past few years and just monitoring soot mass and triggering regens when necessary.

I did have a look last night on the App store and noticed an app similar to VAGDPF called DPF monitor for VAG and its $10. So just out of interest I might buy that app and see if it works on my SQ5. Apparently works on CarPlay as well so if thats true it will be quite a handy tool to have.

DPF Monitor for VAG on the App Store

[Lucas_R]

Update on the DPF Monitor app for iOS Apple devices as discussed in my previous post above. It appears to look and work in an almost identical way that VAGDPF does - which is a good thing. So for those people who are on Apple devices, this is a good option and definitely worth the $10 cost for the app. It also works on Carplay which is great.

Only downside is that you cannot trigger a regen using this app - you can only monitor the DPF behaviour and health.

I will use a combination of this app and Carista going forward, with Carista being able to manually trigger a regen at a time that suits me (eg not when im 5 mins away from home after just spending an hour on the freeway at 100kph).

[Lucas_R]

And for comparison, here is a screenshot of the VAGDPF app on the same car. Note both apps have several parameters on my engine that cannot be read.

Attachment 46567

[GreyWolf]

Hi Lucas_R

Thanks for the update. I think I might trial the app as well. Out of curiosity what is your average mg/km when driving? (negating variation with load/condition). It appears any value > 350C Exh temp is in passive burn state.


It would be great for the other 1500+ views if anyone else can share some data to compare & baseline.

[GreyWolf]

@ Lucas_R

Out of curiosity have you come across any phone apps that have the ability to trend multiple sensor values in one graph (similar to vcds)

I have since discovered the sensors associated & difference between the calculated & measured soot mass.