low fuel pressure

[withku]

So i’m having issues with fuel supply, it’s something i messed up during rebuild. Turns over for 5 seconds before starting and sometimes idles rough. Bogs down if i hit the gas.

For some reason fuel rail pressure isn’t going above ~75 psi. Everything is plugged in.

Getting code P0087, and a fuel pump fault / fuel rail pressure control fault on forscan.

I doubt my HPFP magically died over the last couple months. I’ve swapped all injectors. Any ideas on what the issue could be?

here’s some forscan logs

https://imgur.com/a/4RrVIwG

 

[76FoMoCo]

Lpfp?

 

[GotGrip?]

Just went through this, my XDI-35 died. Swapped stock pump on and switched tune, runs just fine. Same code as you.

 

[withku]

Just went through this, my XDI-35 died. Swapped stock pump on and switched tune, runs just fine. Same code as you.

pressure was topped at ~70? makes sense considering lpfp runs to about there.

 

[ridered74]

pressure was topped at ~70? makes sense considering lpfp runs to about there.

Do you have stock pump or xdi?

 

[withku]

Do you have stock pump or xdi?

stock. i’ll check voltage tomorrow.

 

[ridered74]

stock. i’ll check voltage tomorrow.

I got a stock one I'd sell if you need one. Took mine off and upgraded around 40k miles.

 

[Lowrider1976]

Could be a good time to invest in an xdi... just saying

 

[stripSHO]

This is hopefully a stupid question but... did you reinstall your cams in the same heads they came out of?