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Yes...
For years (due to a bad ecu) I HAD the CSI wire directly to the battery through a toggle switch on the dash. I would hit the switch for a second or two till it cranked and started. This is somewhat how the FSM shows how to test the the injector to apply 12 volts to one side and ground the other.

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I will give it a try in the next few days. How did you determine that you had a bad ECU? I'm not getting a check engine light and I know the light works (kept lighting up until I replaced my O2 sensor). Also can the cold start injector be rebuilt/repaired? I remember reading about a place called RC engineering(I think) that rebuild injectors.