Quote:
Originally Posted by Lingling
BMW m550i g30. Has the following codes
120908
123525
120408
I’ve doubled checked the wastegate plug for bank 2, and it’s all plugged in. I was able to use ISTA to calibrate both wastegate with no issue and drive moderately with no issue. As soon as I full throttle it throws a DTC and throws these codes. I’m out of ideas if anyone has had any luck fixing this let me know thank!!
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Did you solve this? I would suggest swapping the ISM then the actuator.