[vettestr]

Turk and Bill and..
Thanks Bill, hope generic view helped and sometimes just movining wires or new install is the easiest route. I have often got stuck looking at same issue and can not see the forest for all the danm trees in my way. A short check here would be to remove wire at hot side of fan (when up to temp to make sure thermal sw is turned on if you have one). Be carefull with wire touching any thing and do not run long without fan working. Start engine now and see if the amp meter is still working. If fan is wired in series with amp gauge it will not work when wire is removed from fan. If gauge stops then rewire, if gauge works then keep lookin. Hook fan back up before she gets too hot.
Turk, The hardest problem is one that comes and goes. A cheap VOM is about 10 bucks and sometimes paying a bit more is the best. A Volt Ohm Meter with a high impedance is needed to check things like an 02 sensor cause the 10 dollar model will smoke a 60 dollar 02 sensor so whats a guy to do? The ground is always a problem on a glass car so verifing ground or resistance is often step 1. The cheapest meter will work here and grounds should be 1 to 10 ohms. Just checking continuity here will fool ya.
Have fun guys. jeff c