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Discussion Starter · #1 ·
Hi guys,

I have a Audi A3 8v with an HPA is38 oem+ turbo. anyone have any knowledge on the “charge air pressure control valve: position closed”?

My wastegate actuator voltage is set at the moment at 3.57v but the “chare air pressure control valve: position closed” is at 4.5v.

Meanwhile my S3 is at 3.7v “charge air pressure control valve uncond voltage sensor” and the same 3.7v on “position closed”.

Im thinking my actuator has gone bad because I’m getting immense turbo noises under boost (wastegate probably not closing as it should), and loss of power.
 
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