Can you name this Component and its function?

[Gaz64]

Originally Posted by Joeyv

The shop said that the fuel pressure drops in 15 seconds or less. The shop said this particular EFI requires 6 lbs pressure per injector ( 48 lbs total). The Bosch fuel pump is spec sheet say it operates at 72 lbs. Next steps are to check inside the fuel cell to see if that is any crap in there from either Gas that evaporated out when the car sat, or crap from decomposing internals of the fuel cell (given that the car sat for about 15 years). Next, the fuel filters will be cleaned out or replaced (I did that when I was getting the car ready for the road, less than 50 miles ago). If the pressure still drops, the low pressure pump will be tested. From a cost perspective, I’m hoping to get the fuel system working with its current configuration, or with as few changes as possible.

Looks like your low pressure side is the culprit.

Disconnect the HP pump from power, take the return hose off from the surge tank, run a hose from there into a bucket, run the low pressure pump, and measure volume versus time.