He means disconnect each plug at the plug and just read the plugs resistance as the numbers you have recorded is from the harness being in the loop.
My 1.4 has the plugs at the other side of the head so you are lucky they are at least seeable and should be fairly easy to remove but remember they can snap!
Awesome thank you so much. I took off the black connectors and there are 2 pins but not read them yet.
I've just seen whilst doing the right hand side one that there is a loose pipe, see picture marked in red, is it just pushed into that round thing? Surely it would need to be secured?