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There is continuity on the green wire from the tach connector to the coil. However, there must be some type of pulsed signal the coil sends out for the tach to convert to rpm. Other than looking for the needle bounce, is there a way to see if the correct signal is present from the coil? I'm beginning to think I may have an ignition problem. I'm going to jumper the 30/87 contacts on the pump relay tonight and see if the car will run like that. If so, then I guess it's a bad tach. If not then maybe it's a coil/distributor problem? Does that sound right??
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