A bad ECU (as in a bad solder joint) will cause your symptoms. Also, if your speed and reference sensors aren't sending a signal, they ECU cuts off the fuel pump. Open up the ECU and check for bad solder joints.
See here:
http://forums.pelicanparts.com/showthread.php?t=401982&highlight=ecu+solder
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Joe
See Porsche run. Run, Porsche, Run:
`87 911 Carrera