1. pull an injector and see if it keeps squirting, that will tell you a lot.
As I recall, there is a signal from the computer to force the fuel pump to
run for 10 sec or so when you first crank it (note the "as I recall" part).
2. you might try a can of starting fluid, and have a friend crank it -
squirt the starting fluid into the intake as required to keep it running -
if it will run on starting fluid, then you know your ignition, timing, etc
is OK, and you have a fuel delivery problem.
3. put a gauge on the fuel rail (there is a port for this purpose at the
front of the rail) and monitor the pressure, see if it's holding steady at
what it's supposed to be

Good advice from Bill but try Clarks Garage---go to the garage manual
section and the go to the troubleshooting section---could be a number of
things from what I have seen written but only had a pressure regulator
problem myself.  Good luck

Brian Moore
87 944 na

======================================================================
* Reply by Jack D. Russell, Sr. <jackru$$ell2@notmail.com>
* Newsgroup: alt.autos.porsche.944
* Reply to: All;  "porsche_bb" <beckers_porsche@hotmail.com>
* Date: Fri, 28 May 2004 02:38:55 -0400
* Subj: Engine wants to start but wont run
======================================================================

pb> Hey guys, you helped me out last time, i replaced my relay and
pb> bought a fuel pump and im getting fuel all the way to the
pb> injector rail. I crank the engine and at first it wants to start,
pb> but then just cranks normally. I tried for about an hour and gave
pb> up. I cleaned the injectors and spark plugs. Please help

pb> brett

Try starting it with one of the injectors pulled. If it starts and
runs, then you need a new fuel pressure regulator. That'd be my guess.