How can the VTG regulation be verified?

Hello,

'In the last few days, the performance of my car has changed. It no longer pulls consistently but has 'hesitations' intermittently, and I suspect the problem is related to the VTG (Variable Turbine Geometry) system. I disassembled the mass airflow sensor (MAF) and cleaned it with contact spray, but that didn't solve the issue.' Can the connecting rod be detached from the vacuum chamber to check for smooth and unimpeded movement?

Best regards.

P.S. And have a great weekend!

Hi,

Take a look here: http://www.dieselschrauber.de/vtg.html

vikinger wrote:

I disassembled the LMM and cleaned it with contact cleaner, but it didn't help.

Hi.

You might have just created a time bomb with that contact spray.

Just a tip, in case the performance should decline even further in the coming months .

Mmmh... how does that work? Do you mean it's because residue might cause excessive combustion, or did I just damage the mass airflow sensor (MAF sensor) with it? Well... anyway, I ended up drying the entire thing with compressed air, and so far, there haven't been any noticeable changes.

Best regards.

vikinger wrote:

Mmmh... how does that work now? Do you think it's because residual material might cause excessive combustion, or did I just damage the mass airflow sensor (MAF) with it?

Hi.

The latter: Contact sprays are essentially "harsh chemical cleaners" and can remain corrosive for weeks or even months after application (and the initial perceived success).

When dealing with electrical contacts, it is often necessary to verschandeln them at increasingly shorter intervals to remove the oxide layers that form due to cleaning. . . some metals can become so corroded after only 3 cleaning cycles that they become unusable.

Whether an LLM is immune to something, I wouldn't sign off on that without verification .