1990Z71Swede
I'm Awesome
Can't answer the "just unplug" part with certainty, but If there is nothing else than injector trigger signal in that connector, then yes. Removing the Relay and draining pressure, yes but the ECU might be monitoring Voltage to the pump, at least I have seen what I believe is that in @PlayingWithTBI 's EBL logs and the Vortecs might be doing the same thing.
If it does I would Imagine it would set a code. If so, either unplug pump at the tank or since you are draining fuel anyways just run a hose into a fuel can.
If it does I would Imagine it would set a code. If so, either unplug pump at the tank or since you are draining fuel anyways just run a hose into a fuel can.