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DFHA 2.0 TDI

Posted: Thu Sep 03, 2020 1:37 pm
by Parol
Greetings to all!
Good program, works great on DFGA and DADA engines, but on my DFHA, it doesn't. Doesn't show anything that I wanted. For example, residue of soot and ash. Maybe the Admin will tell you something?
I am attaching a screenshot.

Re: DFHA 2.0 TDI

Posted: Thu Sep 03, 2020 10:58 pm
by admin
It's possible that DFHA has different parameters setup depending on its software release.
It already happened with some recent engine: I had to create 2 different setup taking in account the engine type and the ECU software version.

You should try engine groups different from 14 (this is the standard group for DFHA engine) checking if they give you more readable parameters.

Let me know what you find.

Re: DFHA 2.0 TDI

Posted: Fri Sep 04, 2020 3:28 pm
by Parol
Thanks for your answer, of course I will try and let you know what happened. So far I tried to determine automatically, and group 14, with the same result.

Re: DFHA 2.0 TDI

Posted: Sat Sep 05, 2020 8:55 pm
by Parol
Everything turned out to be very simple, when I chose group 9, the test passed. Thank you for the tip.

Re: DFHA 2.0 TDI

Posted: Tue Sep 08, 2020 8:25 am
by admin
Seems ok, thanks

You should verifiy this:
  • "Regen. duration" field must increase during the regeneration, check also if the time increases correctly (the minutes increase corresponding to the real time)
  • "Time since last regen." must increase correctly
  • "Post injection 1" and "Post injection 2" are almost always at 0, but during the regeneration they must have values different from 0
Bye

Re: DFHA 2.0 TDI

Posted: Wed Nov 30, 2022 6:48 pm
by kEEzY
Hi, I just want to report that my DFHA engine is not working properly with predefined group 14, but group 12 is looking good (also regen. duration is increasing during regeneration, time since last regen is increasing correctly and Post injection 1 and Post injection 2 are different from 0 during regeneration)

Re: DFHA 2.0 TDI

Posted: Thu Dec 01, 2022 10:43 pm
by admin
Thanks for the report. Maybe can you give me more details about what isn't working? Also a screenshot of the new setup is welcome to check the ECU sw and hw rersions.

Re: DFHA 2.0 TDI

Posted: Mon Dec 19, 2022 3:47 pm
by kEEzY
This is predefined group 14
Image

and this group 12
Image

Re: DFHA 2.0 TDI

Posted: Wed Dec 21, 2022 9:18 pm
by admin
I need to create a custom group for that specific ECU sw version using the group 12 as data base.
Did you take this screenshot with engine powered off? I don't see any post injection.

Thanks for the feedback

Re: DFHA 2.0 TDI

Posted: Fri Dec 23, 2022 7:16 pm
by mastercb
imho Post injection is only done while regeneration is active. In the screenshots there seems no regeneration active.
Btw: My DFHA (year 2017) works perfect with default group.
If different setups are necessary for different generations are necessary with this engine, you cqn perhaps decide by model year or SW-part number

Re: DFHA 2.0 TDI

Posted: Wed Dec 28, 2022 2:38 pm
by admin
Post injections (mainly post injection 1 and 2) are used also for noise and pollution reduction, especially in last engines with higher emission restrictions.
In normal using with no active regeneration, you should see some post injection. A value fix to 0 could mean a wrong parameter setup, but during an active regeneration you can easily verify if those values are correct with non-zero values.

EDIT: I didn't see you reported that post injections values aren't zero during the regen. Thanks

Re: DFHA 2.0 TDI

Posted: Sun Feb 26, 2023 9:20 pm
by mastercb
Since recent update (3.27.12) you introduced two engine groups (12 and 14) with engine DFHA. "Automatic engine selection" choses group 12 for my engine, which does not work for my engine (no values displayed, yellow vehi le symbol).
Only after manually selecting group 14, everything works well as before. Perhaps you can check this for future releases to be mapped correct at automatic selection.

My engine data:SW: 04L906026GT/3019
HW: 04L907309P

Re: DFHA 2.0 TDI

Posted: Tue Mar 07, 2023 12:32 pm
by admin
Yes thanks, the selection is made checking the ECU SW number. With the information provided I can include your version in the correct engine group.