Good afternoon
I need help. When I turn on the application without connecting to the car, in the ninth field it says Soot mass Mensured, and when it is connected to the car, it changes to Nox sulfur charge. Is a Nox value of 1,295 a normal value? Is this 1.29 or 1295?
Thanks in advance for your reply
Passat b8 2.0
Re: Passat b8 2.0
It's normal, when you start the app, your engine type is unknown. After the initialization, the engine type is recognized and the app sets itself with the correct engine group. Not all engine groups shares the same parameters, they depend on the available ones in the diagnostic configuration of the engine.
I have few logs with the NOx sulfur charge, but your value of 1,295 grams seems in the correct plausible range.
It's 1 gram point 295.
I have few logs with the NOx sulfur charge, but your value of 1,295 grams seems in the correct plausible range.
It's 1 gram point 295.
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Vladimir2020
- Posts: 2
- Joined: Thu May 29, 2025 5:12 pm
Re: Passat b8 2.0
Have another question, does the difference in temperature indicate any irregularities? I am attaching a picture. The inlet temperature is lower than the outlet temperature. is that okay? Thanks again for the reply and the fantastic app
[attachment=0]Screenshot_20250601_185238_VAG DPF.jpg[/attachment]
[attachment=0]Screenshot_20250601_185238_VAG DPF.jpg[/attachment]
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Re: Passat b8 2.0
I already answered my email, but I can reply also here for everyone.
It depends on when you check the values.
During normal driving, the 2 temperatures should be similar.
When you accelerate, or when the regeneration starts, the dpf input gas temp raises before the output temp and, on the contrary, when you stop to accelerate, or when the regeneration finishes, the input temp decreases before the output temp.
You can imagine the temperature like something moving from the engine to the exhaust pipe just after the moment when you produce a gas temperature increase. This happens when you accelerate for many seconds (not a quick acceleration) or when the ECU starts the regeneration adding fuel in the post injections.
To have a global overview of the correctness of the temperatures, you should log a full regeneration and put the data into an excel graph.
If you want to share the log here, I can analyze it for you.
It depends on when you check the values.
During normal driving, the 2 temperatures should be similar.
When you accelerate, or when the regeneration starts, the dpf input gas temp raises before the output temp and, on the contrary, when you stop to accelerate, or when the regeneration finishes, the input temp decreases before the output temp.
You can imagine the temperature like something moving from the engine to the exhaust pipe just after the moment when you produce a gas temperature increase. This happens when you accelerate for many seconds (not a quick acceleration) or when the ECU starts the regeneration adding fuel in the post injections.
To have a global overview of the correctness of the temperatures, you should log a full regeneration and put the data into an excel graph.
If you want to share the log here, I can analyze it for you.