AFPR problems:

[BATTOSAI]

I actually have a COSMO RACING adjustable fuel pressure regulator. The main problem is that when I stop my car and start it again, the FP rises to 80 psi at idle!!! and counting that I have the Kl injectors and still haven´t got boost, (I am testing all the systems actually) it´s a lot of fuel! any suggestions about that? it looks like the diaphragma inside got stuck or something like this.