6.4L injectors should be pretty hard to ruin by running out of fuel. They arent like 6.0L injectors with a piston that could slam down on an empty chamber. Current is run through them in one direction to expand a pack of piezo crystal discs, then to shut it off the current has to be reversed.
Glad its working now, probably just had #6 full of air after the rest were full of fuel again.
Glad its working now, probably just had #6 full of air after the rest were full of fuel again.