Turbo boosting at idle?

[Candycane]

New here fellas need help mechanic is stumped 2018 pete with 565 performance series x15 i have boost at idle around 3psi rev it up shoots up also put on new intake sensor/boost sensor and now turbo and actuator truck was mandated at the time but is now de mandated and still does this has about 485k on it iam lost already got alot of money into this and down time thank god i got a spare truck