If you hook 12 volt power up to the test/prime terminal and it runs? Then it would have to be the ECM? If wiring is correct. Is it consistent 30 seconds each time? Will it start after the stall?
Here's a link to diagram.
http://www.gearhead-efi.com/Fuel-Inj...8&d=1331599730
Do you have one of these on your harness?
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