ST overboosting

Aschlokk

Lurker
Jan 16, 2020
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Ride
E90 N54 LCI
Hey guys,

im having overboosting issues with my Single Turbo.
But only when my mac valve is connected to upper wastegate Port.

but the mac isnt even plugged in to the boost controller.

when i unplug the mac solenoid from the Upper Port the Car does perfekt spring pressure.

its the second mac solenoid i tried.

when i unplug the Hose from the Upper wastegate Port and blow air in it, the Port 3 of the mac solenoid vents. so thats Fine.
But from where comes this overboosting?

wastegate is a Turbosmart Hypergate 45 gen V
Boost controller ist the greddy profec
 

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