wierd sr starting problem

[Jasonx63]

I have searched and couldnt find to much.

I have an s13 black top 740denso injectors walbro pump z32 filter recently changed. I went out to my car last night and it didn't start so I pulled the fuel pump fuse and cranked until all my pressure was gone plugged the fuse back in and primed the pump and it fired right up and drove fine. I went to go get gas and it wouldnt start again so I unplugged the fuse and it bleed the fuel pressure put the fuse in and it fired and wouldn't start so I unplugged yhe fuse started it and while it was running off the pressure popped the fuse in it ran idled and boosted fine then this morning it started up and then I went to work and it did it again. Any clues would help thanks.