Differential pressure

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TarasV
Posts: 2
Joined: Thu Jul 31, 2025 11:41 pm

Differential pressure

Post by TarasV » Thu Jul 31, 2025 11:50 pm

Hey, I'm trying to check the differential pressure on my Volkswagen Golf 7 1.6 TDI. I watched a lot of videos and noticed that the value is provided at the bottom right corner. In my case, after connecting my ELM to my phone and initiating the app, it displays post injections 1, 2, and 3; however, differential pressure is missing.

Do I need to do more presets because I did not find a solution to this problem?
Attaching some screenshot
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admin
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Posts: 633
Joined: Sun Jun 02, 2019 10:58 pm

Re: Differential pressure

Post by admin » Fri Aug 01, 2025 9:33 am

Differential pressure is a primary parameter: this means that it's my first choice if I find it available in the diagnostic parameter list, otherwise I have to switch to another parameter in replacement.
I think this happened when I built the setup of your engine. Can you tell me the engine code? So I can verify that.

Not all engines have all the parameters available. Sometimes a new ECU software release adds more parameters and sometimes parameters exist but I haven't find them during my scans (for my mistake). So I can re-check if there's something new to add or something to correct.

In the meantime you can try to use all the engine groups available in the options and check if the differential pressure can be read from your engine ECU.

TarasV
Posts: 2
Joined: Thu Jul 31, 2025 11:41 pm

Re: Differential pressure

Post by TarasV » Wed Aug 06, 2025 9:18 pm

Engine code is CXXB/2016
I tested on all the engine groups but still not working
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Manurro
Posts: 1
Joined: Mon Oct 06, 2025 8:04 pm

Re: Differential pressure

Post by Manurro » Mon Oct 06, 2025 8:11 pm

I have the same issue. My vehicle IS a T6 multivan 150 cv. CXHA/2018 r4 2.0 l TDI. Is possible to show differential pressure on my app?

VinDeisel29
Posts: 1
Joined: Fri Oct 10, 2025 2:53 pm

Re: Differential pressure

Post by VinDeisel29 » Fri Oct 10, 2025 3:09 pm

Hi Can this app zero dpf levels ?

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admin
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Posts: 633
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Re: Differential pressure

Post by admin » Sat Oct 18, 2025 9:18 am

The app can only read the parameters.
No active command is present, this was my choice when I started to develop the app: a read-only app to avoid any issue and guarantee to the users that there isn't risk for the car.

kamil-vag
Posts: 4
Joined: Sat Sep 27, 2025 7:18 am

Re: Differential pressure

Post by kamil-vag » Mon Nov 03, 2025 1:21 pm

I found formulas for both missing parameters for the CXXB engine - calculated mass and differential pressure, I hope the creator will add it to the application soon and release an update.
IMG_20251103_125426.jpg
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IMG_20251103_125504.jpg

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