Fuel pressure RR help

[MorganY]

Hey guys. This morning I went to go to work, and I noticed before I started my truck that my fuel pressure was 75psi...it always sits at 55psi. The pump didn't sound any different either. I backed off the regulator all the way and it only went down to 60 then started creeping back
Up to 75, and I pulled the screw out completely and now it won't get down past 75 at all. I'm reading pressure at the regulator..and I have a fuel bowl delete.

Any help on troubleshooting this would be appreciated, thanks

 

[09stroker]

Are you using the factory return?

 

[MorganY]

No I have parker lines run from the motor down to the airdog "t"

 

[05wh250]

I had the same problem with mine, the pressure would just shoot up for no reason and airdog couldn't give any solutions so i took it off.

 

[MorganY]

Found it, Fuel pressure sending unit was bad!