FP goes bought goes up 1:1 with boost. Idle FP is anywhere from 23-37..usually @ 33psi. I routinely see my warning light pop off at 25 psi while cruising, and never on acceleration.
I have: -checked fuel lines -new OEM regulator -new OEM damper -used working TT fuel pump controller -used very low mileage TT fuel pump -Ohm'd injectors -Ohm'd coil packs -Checked spark plugs -Volted the pump (seems funky at times) -ohm'd PTU