Replaced the in-tank pump on my 93 940 with Regina ignition. This is a non-turbo car. After reconnecting everything, I have no fuel supply at the fuel pressure regulator.

Verified that the pump is running when the key is turned on, albeit for barely a second. Swapped fuel pump relays and swapped #11 fuse, no difference.

What might I have done wrong?

A little more background. I ordered from Rock Auto and got a Delphi FE0069. This is a tad shorter than the original pump. I'm not sure what it is, but I did not re-install the gizmo on top of the pump and just ran fuel hose directly to the pump outlet.

If that makes a difference, then I'll have to order a different pump. This is what Rock Auto showed as the replacement for the Regina. FE0069 matches up to Volvo 3507436 on other sites, but I did not know that until after the pump arrived, and I had everything disassembled.

Apparently, Volvo 3507736 is the correct length pump, but Rock Auto cross references this to the Delphi FE0069. Specs are very similar to 3507736.