Thanks for chiming in Matt. I think it must be electrical also. I'm running the pump off of a relay that ties straight to the pos side of the battery in the trunk. I'm going to try moving the ground from the pump straight to the neg side of the battery and not the frame where it currently is. I believe I have enough alternator (120amp) but I should add up my total load. Aside from the Fitech and fuel pump I run a single Chevy HHR electric rad fan. I'll measure my voltage at the pump also. AEM says it needs 13.5v ideally.