Hmm, looks like the plug that came with the pump is wrong, and it should be black, not green. Hence wrong colours. Pin 1 is earth, pin 2 is supply +ve. Sorted, can start loom tomorrow night then.
yeah plug is off something else random plus the heat shrink tubing is covering the pin numbers on the back of the plug, heres a handy pic:
Found this in the parts box, reckon that will sort it, 411 relay arrived, just have yo work out how to put extra wires into the relay socket next.