Thanks for all the suggestions guys. So yes, I do get voltage for a second or two on the 4 pin socket green wire when starter is pressed. Tried applying voltage to the tank side of the 4 pin connector, and the pump does not run (it did run a couple of weeks ago when I did this) - so it looks like I will be taking the pump out again or else there is a problem in that connector. Might take me a while to get back to this as I just got my Rally Raid kits for the G310GS bikes & need to fit those for a ride in a few weeks.