Pic here shows fuel pump jump

[runner406]

Heres the picture i took and edited for anyone who has no clue what plug to jump for the fuel pump hope it helps you ,and yea thats my mug in the bottom lmao

[runner406]

[Christ]

And this does what?

[Movin]

jumps pump, for testing

[KingFish]

Jump from the diag plug to the vert one?

[georgeb]

That plug is the best diagnostic tool on a Festy. Anytime there's a engine issue it should be the first thing you do. It's the only way you can hear the pump run without pushing on the vane, which requires some disassembly and a helper. Plus it won't run without the tube. Jumping the plug bypasses the VAF fuel pump switch. If it only runs with the jumper you know it is the VAF switch that's bad. It will also remedy a hot start problem like I had in my '92 before getting a new pump. Mainly it might save you from buying a new pump, which several folks on this site are willing to do without diagnosis.