I am at a loss. Every e-pump I've ever dealt with either worked at full pressure or didn't work at all. My pump is putting out 10psi, unless the injectors are stuck open, but the truck does start and run for a little before starving out.

The regulator appears to be working -- pulling the vacuum reference doesn't change the pressure one iota.

Any ideas?

 

Fuel line inside of the tank?
Seen it happen before with intank setups.

 

did you use the clear accordian tube?

 

We used high pressure rubber fuel line for all three lines (this is a dual set up).

What he did say was that the nipple at the pass through (on the ring) was too short to put a clamp on it, so he didn't clamp it thinking tension would keep the line on. When I told him how much pressure we run at idle and then explained about the second pump coming on, he thinks he might have to replace that pass through. Out of curiosity, what did you guys with dual pumps do about this?