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Guys;
I question the usefulness of resistance tests for checking an ignition coil in the first place. About the only thing an Ohmmeter check could be usefull for is to check if it is a coil requiring a ballast resistor or not, because with few exceptions, the failure mode of almost any ignition coil is an insulation breakdown due to (and only WHEN) the high voltage is generated. The low voltage that an Ohmmeter uses to test resistance will not breakdown the insulation, so I'd bet a hot fudge sundae that 9 out of 10 failed coils will even check out fine, using an Ohmmeter.
To elaborate on a more useful test...hook up per 122 wiring diagram, using a pushbutton in place of the points, and open up the sparkplug gap to double the normal .032". If you get a healthy spark jumping across that gap, you can have a pretty good level of confidence that its a keeper! (CYA Note: Coil may STILL fail when it gets hot!) Variations on this technique also work well to non-lethaly discourage squirrels which insist the bird feeder is just for them...hehehe...after the second lesson, they don't dare!
Cheers
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