OK so i take it back to my tuner and told him its over boosting, because the last time he set it there was a rip in the intake hose he didnt know about, couple months later i changed to alluminuim pipes, and the car went crazy so i told him i think you need to set the boost again because of the rip all the extra air is going through now, so took it to him and he was looking on his computer and said ok thats set to 20psi and re-tuned etc... i take my car out today and said to my self lets check the exact boost it goes too, so i reset the peak, and took it for a spin first was 22.7 psi, second run even harder 23.4 psi and third time i gave it REALLY hard 23.9psi.
Can someone tell me if his boost reading machine would be diff to the one i have ? How does he say its boosting at this and my controller says different, i have not called him yet as i only noticed it tonight.