If you disconnect the hose from the wastegate actuator, then boost will raise over 1 bar in 1st and 2nd gear, but it can't with ECU control, because it doesn't allow higher pressures in higher RPM, which is why you see only 0.7-0.8 bar boost in 1st and 2nd gear, because there is no time to raise the boost at 4000 rpm in 1st and 2nd.Originally Posted by Steve Webb
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