You never had a link before now I see what one looks like. I think I've seen one around here somewhere.
Dave knows all about tools....hehehe
I had a coil that reads very high also. Our friend Chesty came up with the best explanation. The coil wires are just pressed against metal with the grommets. Perhaps some grunge is in between the wire and the metal, not allowing a good connection. Maybe by a little twist or manipulation of the little metal plug at the bottom of the coil might scrape things free, and allow the current to flow?