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Thanks Dave.
Actually, my issue isn't a starting issue per se.
As I mentioned, we briefly failed to start it, but applying the high pressure pump quickly resolved that. What puzzled me was that the engine wouldn't stay running unless I then applied an on-off-on-off routine to the electric pump switch. It seemed I was, essentially, manually metering the fuel flow--as if there were no fuel pressure regulator in the system.
So now I'm wondering if I have two problems: 1) a failed engine pump, since I can't start or run the engine without the HP electrical pump, and 2) a failed fuel pressure regulator since I can't keep the engine running without the on-off-on-off routine.
I'm assuming of course that there is a fuel pressure regulator, but wondering also if that's a bad assumption.
Thanks again.
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