Can't connect

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arnie
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Joined: Thu May 12, 2022 2:34 am

Can't connect

Post by arnie » Thu May 12, 2022 2:47 am

Hi, I've got a Carista OBD2 and can't connect to VAG DPF
Is this because VAG DPF is not compatable with my CAAC 2012 T5 engine
or am I doing something wrong?
I can connect to the Carista app OK

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admin
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Re: Can't connect

Post by admin » Thu May 12, 2022 10:39 am

The engine CAAC isn't officially supported, but almost all parameters can be read setting the engine group 3 in the options.
I'm not completely sure about the correctness of the values, maybe if you can post here a screenshot I can give a check.

I don't have many information about this engine, I received only few requests of information by email.

arnie
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Re: Can't connect

Post by arnie » Fri May 13, 2022 8:48 am

All good now CAAC engine works good with group 10 and all parameters supported
Would this still be accurate?
DSCN2151 (Small).JPG

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admin
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Re: Can't connect

Post by admin » Fri May 13, 2022 4:11 pm

Good, all parameters are read correctly, but now we have to understand if the values are calculated correctly.
To do this, the best way is to check a log file containing at least some minutes in normal engine condition and a full regeneration.
Alternatively you can take some screenshot at different time including the normal run and the regeneration phase at the beginning and at the end.

arnie
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Re: Can't connect

Post by arnie » Sat May 14, 2022 8:43 am

Thank you for your replies and help
So I did a forced regen with the Carista app Where can I find out what it all means?
DSCN2155 (Small).JPG

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Re: Can't connect

Post by admin » Mon May 16, 2022 3:13 pm

I don't see problem, but with these notes:
"distance since last regen." = is the distance correct for you?
"time since last regen." = is the time correct for you?
"oil ash residue" = seems low, but what's the mileage of your car?
"low press. egr closing" = was the engine off when the screenshot was taken?
"post injection 2" = same question of the point above
"differential pressure" = same question of the point above


The "port injection 3" is disabled, did you voluntarily disable it?
Every parameter, except the first three, can be /enabled disabled tapping on it.

After this checks, we have to do the same with a picture taken during the regeneration or just before its start.

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