Anytime you flash the ECU, you need to clear the stored fuel trims.So I pulled everything off got to the wastegate and said **** t I can't do it I put everything back and reset the Ecu and now I get 26 psi by 3800. Wth. But now the car works
You can do this by removing the ground off the ECU for 30 secs and re-installing.
If not, the long term fuel trims are stored in the ECU from your previous tune and not cleared.
This will speed up the process of the car re-learning for the tuner's changes commanded.