Originally Posted by Stu @ M Developments

1) check injector isnt fitted upside down. Seen this before.
The elec connector end goes to turbo.

2) Connect actuator to turbo direct.
If still too much boost actuator / wastegate fault.

3) If boost now ok, AI fault. Do you know FOR A FACT that they actually work?

4) If you do know they work, the chip may possibly not have been programmed for AI. (I do make mistakes) Was your T34 chip set to AI when you had boost issues?