Adjusting and Setting Turbo Wastegate Voltage

ArkS3z

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Does anybody know what the correct voltage setting is for the actuator for a PFL S3 8v? I've not gotten any luck with a specific voltage, people quoting anywhere from 3.3v to 3.9v. Mine currently reads 4.189v which I suspect is a little too high. I've tried adjusting the actuator arm by grabbing it with my fingers but for some reason I can't seem to tighten it further. Which is bizarre as I easily managed to untighten it to the point that I managed to detach it from the valve arm. I've since ordered a 5mm spanner in the hopes that I can get more leverage and tighten it down to 3.9v.

Reason I asked is I've been experiencing sudden boost loss since I got my S3 which always got remedied when I turn the car on and off again. I've got brand new batteries to rule out voltage gremlins.