Golf 7 1.8 TSI Actuator problem

[martmak]

Hello, i have some problems with my actuator, i got Golf 7 1.8 IS12 running on Stage 1, 122000km on a dash, 1 year ago my car threw me EPC light with P2563 - Implausible signal, i made initial adaptation and i dont get EPC light anymore, but my turbo is underboosting, so i think maybe problem is in my wastegate.

During my initial scan, I obtained the following voltage values:

Initial adaptation succeed. Then i tried to make Position check of end stops of charge-air pressure actuator and it failed, aborted-safety reasons.
Here are the updated voltage readings I recorded after position check of end stops:

I made position check of end stops again and it still fails, but initial adaptation does not fail.
WG is not stuck, during the tests i can see and hear it moving, but for some reason with ignition off i can't move it by hand.
Here is some log file, you need ot check 0.356 and 0.354, this shows actual boost and specified, i will try to make better log later: https://datazap.me/u/martmak/log-1693302300?log=0&data=1-3
I will be happy to extend my WG lifespan for other 4-6 months, because winter is coming and changing IS12 to IS20 (used one) is kinda useless before winter.
At this point, I'm seeking guidance on the appropriate voltage ranges I should be aiming for in order to ensure the proper functioning of the wastegate and the overall actuator system.

 

[martmak]

Updated logs: https://datazap.me/u/martmak/31082023?log=0&data=3-4

 

[mgarrettsisk]

I've seen folks set the voltage value to around 3.6 volts and then running the adaptation.

If you continue to get these, replace that actuator. I recently replaced mine at 200000 km because of a recurring EPC light caused by a seemingly "stuck" open wastegate. CTS turbo sells the actuator off the IS38 turbo you can put on the IS12 as a replacement. No lights and way better throttle response after replacement and adaptation.