is your code on all the time or just when it gets to a certain RPM?

when i had my greddy kit on my d16, whenever i would get to a certain RPM or full spool, it would throw a CEL and wouldnt go off until i turned off my car. Got a missing link, and re-did the wiring on the blue box (which should be dumped for the e-manage or something a little better), and everything was alright. Although for some reason when i first the kit on, i was boosting 7psi. h: