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Discussion Starter #1
I have a question about this connector. One of the black wires went to the coil and the other went to the distributor. I'm not sure where the green wire went, or what the connector was plugged into. I cut the black wires and spliced them together. The connector was never plugged into anything, just sitting loose.
I'm just curious what it should go to. And if this may be part of a intermittent missing at idle.
TIA

1978 Spider w/Spica
 

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The connector was completely disconnected?? Wow. The green wire originates at the Relay on the firewall (ign advance I think) and the other wires to coil and distributor. I would suspect someone has re-routed the wires in another circuit altogether, as I would think car would be dead. Here is a wiring diagram courtesy of Roadtrip that should give you a better idea of what is missing, or re-routed or just plain Mickey Moused. Good luck.
 

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From the wiring diagram it looks like it could be the connector to the Ignition Advance Relay, but the green wire should be black. Does your car still have the dual point distributor and the Ignition Advance Relay and vacuum switch still installed?
 

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Discussion Starter #4
The second set of points were removed before I bought the car. I've owned the car for 10 years and drive it often. I don't see any advance relay, and from the wiring diagram that is what the connector is for. no vacuum switch either Would it be a huge bennifit to re-install the second set of points and find a relay and vacuum switch? The car has a slight miss at idle, but on WOT pushes you back in the seat and is generally a hoot to drive. I've never had any major problems other than the head cracking from one end to the other..... but that's another story.

Jim
 

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Trained (ex)Professional, , 1953-2018 RIP,
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The second set of points, when activated, retard the ignition timing about 3 degrees. This was to prevent engine knock on acceleration. One must keep in mind however, that the available fuel back in the late 70s had an octane rating some 6 points lower than todays fuels.

Unfortunately, the wiring diagram in the above link has an error in the ignition advance relay wiring. I know 'cause I drew it. :eek: If you'd like the revised version, please send me your email address in a private message.
 
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