Gm Hei Ignition Module Wiring

Tach signal is a purple wire with a white trace pin r goes to ampseal optoin pin 30 ground the ampseal optoin pin 31 at the distributor.

Gm hei ignition module wiring. With a gm hei 7 pin and 8 pin modules the ignition module wires you need to know about are. Refer to your gm vehicle repair manual for exact location as it varies slightly by model. High output performance 4 pin gm hei module 1 0 ohm ignition coil metal core spark plug wire and a copper core spark plug gapped at 025. Unsubscribe from efurd garage.

Secondary wiring with the addition of the hei distributor the spark plug wires and spark plugs will also need to be changed. If you have an amc a ford or a chrysler distributor with a magnetic pickup it s really easy to convert to a standard four pin gm hei module. Chris craft 65 532 views. With a gm hei 7 pin and 8 pin modules the ignition module wires you need to know about are.

The module does not have a built in timing retard. Important the coil and or module may burn up if the ignition switch is left on for more than 5 minutes with the engine not running. Ignition module tips efurd garage. Hei ignition systems are very dependable and offer great performance on a number of applications.

Advance control signal is a white wire pin e goes to ampseal pin 12. Tach signal is a purple wire with a white trace pin r advance control signal is a white wire pin e override cranking signal is a tan wire with a black trace pin b. Most of the original gm v 6 and v 8 models used an ignition coil inside the distributor cap making it a one piece ready to run distributor. Open the hood of the gm vehicle.

Locate the ignition module. We ve included a simplified wiring diagram to show. Override cranking signal is a tan wire with a black trace. These days there are new hei s out there for under a 100 but you re rolling the dice when it comes to quality and just.

Is it time to give that tired hei distributor a little makeover. To prevent problems either use gm or other quality hei modules or change to a solid state voltage regulator. How to wire gm hei distributor to msd ignition box how to diy duration.