Discussion Starter · #1 ·
I just installed a new dtt assassin fuel pump and after the first start my fuel pressure was about 12psi, I was ecstatic. Ran it to the store to put some fuel in and noticed my fuel PSI getting up to 38... I rechecked everything and its all hooked up right. The only thing we had to modify was re ran the return line back through the original feed line because we didn't receive enough fuel line to make it back to the tank. Is there any kind of check valve or something that wouldn't let the fuel return? I know I can't run it this high but now I'm stuck... Any thoughts or suggestions? I did make sure we put the gears on the correct was, big one on the pump, little one on the harmonic balancer.