Hi, I've had a Passat 3BG 2.5TDI V6 150hp AKN for a few months now.
Initially, the engine was running very poorly...however, I have adjusted the fuel injection pump (ESP/VP44), checked the idle speed control, and the range is now under

.50mg/stroke, so it looks good.
What I've noticed is that the air mass flow values of "IS" and "SOLL" via the original VCDS and original cable can differ by up to 200mg.
I have cleaned the airflow meter and reset the calibration values. Since then, it is fluctuating at 280mg/H at idle, whereas before it was at 510mg/H.
According to GPS, the VMAX is 183 Km/h.
I have no reference for this engine, and I don't know if that's good or bad. However, my 1.9L AVF engine reaches 223 km/h according to GPS, and it's a 4-cylinder. My 1.4L petrol engine with 85 hp reaches 184 km/h on a straight road without a turbo, according to GPS. So, I was expecting better values.
Also, man bemerkt auch beim Beschleunigen, dass es manchmal so vorkommt, als ob man das Bedürfnis haben müsste, auf die Toilette zu gehen. Es hält einen zurück, weil man nicht darauf reagieren kann, und wenn die Toilette frei ist, kann man den Druck loslassen (sorry, dummes Beispiel), aber so "fühlt es sich beim Beschleunigen an: Der Druck baut sich auf und dann, bei etwa 2300 U/min, kommt ein Schub.
The intake bridge was already removed, cleaned of soot, the seal was replaced, and on the exhaust, you can see that the pressure is fully present towards the back (hand held with a cloth).
He doesn't bark, jumps well.
Currently, after extensive work on the hoses, the seal on the fuel sender, there are no more visible air bubbles in the diesel.
The VTG cable retracts visually and extends.
The air filter is also clean.
To rule out the diesel filter as the source of the problem, I disconnected it and connected the hoses using a connector, but this didn't make any difference.
Ideas, tips, would be really great.