mrmint69

I have a supercharger. I installed it with a inline pump, FMU and the charger all at the same time. It loses all fuel pressure for a split second under hard acceleration. Only does this when you really get on it after 5000 RPM. I took the inline pump off and ran it. The fuel pressure is now about 3 psi lower (39 with inline) than with it installed but it stumbles now, but worse. I then took the charger belt off and stomped on it and it ran flawless every time. That leaves the fmu only on it. Could this be the problem only when there is boost? If so what do i do? The boost only gets to 2 PSI with everything hooked up.