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Old 03-17-1999, 11:39 PM
M.B. DOC
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THE IGNITION CONTROL MODULE SENDS A ON/OFF SIGNAL TO THE IGNITION COIL. YOU WOULD HAVE TO MEASURE THE SIGNAL WITH A DWELL METER. THE DISTRIBUTOR SENDS A/C VOLTAGE SIGNALS TO THE IGNITION CONTROL MODULE WHENEVER THE ENGINE IS ROTATING. THE GREEN WIRE FROM THE DISTRIBUTOR CARRIES THE VOLTAGE SIGNAL. HOPE THIS WILL HELP!