Possibly, but what I don't get is WHY the (less than 6 y.o, and less than 4k miles) Bosch FPR diaphragm would rupture when a new Hella fuel pump was installed. Coincidence? And why did the fuel rail lose pressure, that last "work day"?

I'm sure I'm mis-thinking this, and I miss the old days when I could install, plumb, and wire a new tank, braided fuel lines, fuel pump, filter, pressure regulator, pressure gauge, carburetor, and fine tune it all in one afternoon. That was a long time ago, in a Galaxy far away....

__________________
01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"

Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E

Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide