The immo doesn't affect the fueling, it allows the car to start then shuts it off after a couple of seconds, if you're not getting fuel it's more likely an air leak or a bad fuel shut off solonoid I reckon. Try a can of clean fuel with a pie straight to the pump, just have the can sitting higher so it flows better. If that works fine then you'll know for sure there's something else going on. Also it can take a fair bit to get the fuel to actually come through, loosen the pipes on the tops of the injectors and give a good crank, see if there's anything coming out, if there is then close the injectors one at a time while someone else cranks the engine.
