Check fordfuelinjection.com for some great info on the wiring and such...autozone.com has online wiring diagrams under the repair info tab...after you check the wiring and all, the hall effect pickups are prone to go bad...I had the same problem with mine and about pulled my hair out trying to figure it out. 600-800 ohms, IIRC, is good, anything more is bad.

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'73 Montego MX 357C Homebuilt EFI, 9.5:1 comp, mild cam, 30lb injectors, A9L computer, Moates.net chip, 70mm TB, 76mm C&L mass air.