turbo89civicb18hatch

i have a stock ls that i am going to be building the botom end over this winter, i usualy run 11psi on it with safc and 45dsm injectors, t3-60. i am going to be taking the motor out soon and am not driving the car currently so i turned the boost up to 15psi and went for about 5 pulls, its goes good, but wat confuses me is i am not geting a map cel at 15psi or at anything lower than that. do u think that my map is bad, or wat is the problem

Semnos

Happened to me on my previous civic.
Don't know the cause though.