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Vehicle Information: Model (914/4, 914/6): 914/6; Year: 1972; Engine (type, size, modifications): 2.2 "S"; Total Mileage: 50K on engine;

Follow up to question of 9/06. Rebuilt Bosch CD unit was installed and rewired as was previously (ignition set up includes an Allison "pointless" system...similar to Pertronix?) Engine runs fine, but now I can't get the Tach to function! Tach worked previous to replacing the CD unit and works when the Allison modulator is wired directly to the coil (with the tach lead wire), bypassing the CD unit. It is possible I rewired incorrectly after reinstalling the rebuilt CD unit, but I wouldn't think the engine would start and run smoothly...any suggestions?

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