Gm Hei Module Wiring Diagram

Gm Hei Module Wiring Diagram - gm 4 pin hei electronic ignition control module wiring connections diagram with a mag ic pickup coil this electronic ignition system operates with full 12 volts general motors hei ignition control with megasquirt ii there were a number of different kinds of general motors hei modules 4 pin module electronic ignition but doesn t do puter timing control top left 7 pin module large electronic module that does timing control used with coil in cap distributors top right 7 pin module small electronic module that does timing control the 7 pin hei module with a gm hei 7 pin and 8 pin modules the ignition module wires you need to know about are tach signal is a purple wire with a white trace pin r goes to seal optoin pin 30 ground the seal optoin pin 31 at the distributor advance control signal is a white wire pin e goes to seal pin 12 override cranking signal is a tan wire with a black trace best.
gallery images for wiring diagram wiring harness electrical diagram engine diagram parts diagram hei conversions finding an hei distributor there are a couple of choices here new or used in addition here are a few things to note 75 to 79 75 to 85 canadian used 4 pin modules the spark duration can already range from 0 to 25 5 milliseconds the gm hei module provides a distributor like signal to megasquirt so the missing tooth settings should not be used chevythunder hei and electronic spark control fundamentals and troubleshooting the ignition system is an integral part of any engine s performance just a much as the fuel delivery is whether it is carbureted or fuel injection this was posted by mb523 i m putting it here so everyone can find it later thanks mb523 here is a wiring diagram for the 1976 1979 gas model ezgo s for 1985 1992 throttle body injection wiring harness installation.
quality of construction this harness is constructed using oem quality wire for superior reliability and long term use
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