Ford Mustang/Cougar 1964-1973 Repair Guide

Electronic Spark Control System



See Figure 1 and 2

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Fig. Fig. 1: Electronic Spark Control system components

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Fig. Fig. 2: 1972 Spark Control System Apllications

The Electronic Spark Control System is actually the old Dist-O-Vac system, with several minor modifications. The electronic control amplifier and the distributor modulator valve are two separate units instead of being enclosed within a single case as on the Dist-O-Vac system. The distributor modulator valve itself has been modified to include the internal air bleed which formerly was a separate unit in the line connecting the modulator valve to the carburetor spark port.