Ok, on the DVM, you want to use the ohm setting. Set it to the lowest number you can find. When the lead's are not touching, you should read 1___. That stand's for infinite resistance. When you connect the lead's, you should get 000, or very nearly 0, which is essentially a short cicrcuit, like a wire connection. You will need to make a long, 10-15 feet jumper wire, so that you can connect one end under the hood and one end to the black lead on the DVM. Then connect the jumper wire to the wire you are trying to check. You should be able to connect the red wire to the other end under the dash and getting a reading of 0, if it's wired correctly.
Most likely you have 2 wires which got wired incorrectly.
I'd check the black/yellow wire to the ignition coil, since it is supposed to get power from the second connection when you turn the ignition on. It has to be getting power from something else.
I'm at work, at the moment, trying to finish off some thing's before I go on vacation. That's why I gave you my phone number's, so you could call me, if you need to, after I leave work.