So I have been working with an anonymous etuner to tune and now diagnose my car. The problem I've been having is I'm not getting close to hitting target boost. My current tune is set to just under 19 psi. I've only been hitting around 8 or so. I replaced boost control with another Oem one and nothing changed. I have tried with and without restricor pill which my tuner told me he tuned it for the removal of it and the psi changes by a couple when I add it back but still well under target and it cuts out. Without it it's smooth but I stay under 8. My tuner thinks I have a bad wastegate but I'm getting conflicting stories from other forums. My tuner tried to tune it for use without the wastegate vacuum connected but it was unstable and resulted in overboosting. Now he is advising me to purchase a manual boost control so I can run stable without a wastegate. Just wanting some thoughts from the forum here. No vacuum leaks and adjusting wastegate actuator arm only had minimal results.