sorry for the delay, i don't have any part numbers. just take in the 90 from your passenger side, where it goes into the head from the braided line. they should be able to get you a tee fitting i left mine on with a plug in case i ever need to hook it up again.

 

Have you checked the MAP sensor hose for cracks/leakage? Where did you tap in for the boost gauge? Have you been able to check for any codes?

 

Fuel pressure is around 52psi at idle, and slowly drops to like 45 when revved.

The boost gauge is spliced into the MAP hose.

 

I stretched the regulator spring and now I'm at 75psi idle and it drops to 70 under WOT.

But the symptoms persist. It's gotta be boost.

 

75psi is too high. The sweet spot is 65-68psi.

 

I adjusted it back a bit. 68 at idle, 64 or so at WOT.

Still gotta find that boost leak.

 

Try the same test with the MAP sensor unplugged (electrical).

 

Try the fuel pressure test with the MAP unplugged?

Could you explain how that would make a difference?

Thanks
-Matt

 

No. The drive test. See how much boost it makes on the gauge with the map unplugged.