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Author Topic: 1975 ford pinto Ignition Control Module  (Read 3975 times)

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Offline Willys47

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1975 ford pinto Ignition Control Module
« on: July 07, 2014, 05:43:08 PM »
My ignition control module went out for my 1975 2.3l 4cly 
Got a new one but is missing one wire. Old one has (4) wires on one connector and (3) wires on other. New one has (4) and (2). Went back to parts store said its right one,  Is this right, Thanks

Offline amc49

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Re: 1975 ford pinto Ignition Control Module
« Reply #1 on: July 07, 2014, 07:00:00 PM »
Should be missing the blue wire, a circuit to stop power spikes hurting the box, the later ones quickly did away with that to use only six wires. Since most like that the aftermarket has probably quit making the early one. Making that 3 wire connector simply drop to 2, plug it in. The problem is they changed up the other 4 wire connector, same wires/colors but in different positions and a problem for you.

White is power from ignition switch at start, red is power from ignition on run. Green is to coil minus side, black is ground to module, not to a metal ground. Purple and orange are from distributor pickup, but must be correct, reversed they throw timing way off (22 degrees). Blue if present is plus side coil power after the resistor.

Or go back and lookup earlier model say '74 or try '75 again, my stuff says the later 'six wire no blue' came in '76, that '74-'75 use the extra seventh blue wire. Real world may have occurred midyear '75 there.

Offline Willys47

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Re: 1975 ford pinto Ignition Control Module
« Reply #2 on: July 07, 2014, 07:28:33 PM »
Yes only six wires, thank you, didn't want to plug it into my car and short out the new box.

Offline amc49

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Re: 1975 ford pinto Ignition Control Module
« Reply #3 on: July 07, 2014, 07:35:59 PM »
Read again, I modded the post.

Offline Willys47

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Re: 1975 ford pinto Ignition Control Module
« Reply #4 on: July 07, 2014, 08:19:35 PM »
OK, I'll run the wires down tomorrow and check the connections. I can cut the conecter and wires off the old box and solder and heat shrink in right order.
Thanks

Offline 65ShelbyClone

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Re: 1975 ford pinto Ignition Control Module
« Reply #5 on: July 08, 2014, 11:52:53 AM »
Can you pop the terminals out of the plug and reassemble them in the right order instead?
'72 Runabout - 2.3T, T5, MegaSquirt-II, 8", 5-lugs, big brakes.
'68 Mustang - Built roller 302, Toploader, 9", etc.

Offline Willys47

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Re: 1975 ford pinto Ignition Control Module
« Reply #6 on: July 08, 2014, 12:29:16 PM »
Great idea. I should have come up with that "get old".

Offline amc49

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Re: 1975 ford pinto Ignition Control Module
« Reply #7 on: July 08, 2014, 07:43:26 PM »
May be able to disassemble one side of connector but not the other, thinking at least one half may be molded in with the plastic, not like so many others to where you pop them out with a pick and re-orient them in the order you want. Been awhile since I looked at one though. Thinking a purple and black may have to switch locations in the 4 wire connector there, and the black wire may switch to black/green but still same wire. The 3 wire connector should be OK, the unneeded blue end you just forget about, it becomes a 2 wire connector. Ford did mess up on some though and the red and white wires were reversed on some. I did the switch many years ago and car ran fine forever, switched a M II '74 to electronic and best thing I ever did. Still got a seven wire box laying around somewhere too, as well as AMC ones that were six wire blue grommet too but big AMC sticker on them.

The six wire box should have a blue plastic grommet holding wires down, the all around universal '76 and later box that works on most everything. Others had white or brown connectors maybe even more colors out there, they signified specialty boxes that retard timing at start or other goofy things required in some cases. I've seen aftermarket 'blue grommet' boxes with black ones though, the aftermarket after a while just doesn't care about things like that but they used to identify by the grommet color.