I have used tire gauges for this many times. Just cut the Shraeder valve
  end off the gauge hose and extend it with a longer piece of hose. Then
keep the gauge raised above the engine so no fuel gets into it and an
air pocket stays at the gauge. Never press the release button since that
will let fuel get closer to the gauge.

Mark

TinkerMan wrote:

>.... I'm trying to debug as per the Bentley manual
> but don't have a fuel pressure gauge, and it's hard to
> find one locally (non at Auto Depot, and I don't know
> any professional shops), so I'm trying to improvise.
> Here are a few ideas I've come up with:
>
> 1. An air pressure meter - these are quite common (the
> ones with rotary movement, not the "pen-type"). Of
> course I need to find one with a 3-bar scale and a
> screw-on schrueder valve (the standard car wheel
> valve) with adapter to the fuel pressure test point
> (the screw on the fuel rail 'T' near the fuel pressure
> regulator), so I won't have to hold it while measuring
> (as needed with the cheap gauges which are
> press-to-test types).
>...........