Of course the last poster pointed up an important observation. It has to be assumed that there is some voltage there as most examples will not even attempt to fire with no functional glow plugs. But as always there are exceptions. Basically though if voltage is there and cold resistance is truly 2 ohms then there is a problem still that has to be dealt with unless it is just a measuring error. My thrust is I hope someone will always bring up something like the last poster mentioned. The obvious is often overlooked in examining the problem. Good call.