I recently converted my 2000 Jeep Wrangler from it's original fuel tank to an internal fuel cell (sits in the back behind the back seat)...I have tried using an inline vane pump that generates between 90 and 130 psi... The regulator requires 84 psi, the regulator regulates that down to 44 and 54 psi. The pump should be sufficient to work. After first installing it, it ran fine, sounded good and then I shut it off. It hasn't started since. It's not putting fuel in the cylinders. SO, it's a fuel system problem, as in regulator, throttle position censor, or pressure is outside of parameters... Does anyone know what I can do to fix this once and for all, SAVE - going back to the original OEM system.