71' problems
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Joined: Jan 2001
Posts: 56,971
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From: Virginia
You will have to run a new wire from the fuse box to the red module wire.
The 71 coil + wire has a resistor in the wire(which you do need to leave in) but the red module wire needs a full 12 volt key on supply, so you have to go to the fuse box, or run a new wire right to the ignition switch terminal.
The white wire needs to run over to the starter relay. Your starter relay should have two small terminals labeled "s" and "i". The "i" should already have a wire hooked to it going to the coil +(you need this also, leave it). The wire on the "s" terminal comes from the neutral safety switch and the ignition switch, and has 12 volts in cranking mode only. You need to hook the white wire to the "s". If 12 volts is applied to the white wire during cranking, the module will retard the timing which makes the engine easier to turn over.
The 71 coil + wire has a resistor in the wire(which you do need to leave in) but the red module wire needs a full 12 volt key on supply, so you have to go to the fuse box, or run a new wire right to the ignition switch terminal.
The white wire needs to run over to the starter relay. Your starter relay should have two small terminals labeled "s" and "i". The "i" should already have a wire hooked to it going to the coil +(you need this also, leave it). The wire on the "s" terminal comes from the neutral safety switch and the ignition switch, and has 12 volts in cranking mode only. You need to hook the white wire to the "s". If 12 volts is applied to the white wire during cranking, the module will retard the timing which makes the engine easier to turn over.
Fleet Owner
Joined: Aug 2005
Posts: 23,666
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From: Easton,Ks
To Franklin2
I was thinking about this the other day, does not the Red Wire need to be dead during cranking?
All of my diagrams seem to show this but I do not know for sure about this and have not played with it.
I was thinking about this the other day, does not the Red Wire need to be dead during cranking?
All of my diagrams seem to show this but I do not know for sure about this and have not played with it.
Last edited by subford; Jun 23, 2006 at 07:35 AM.
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Joined: Jan 2001
Posts: 56,971
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From: Virginia
I am looking at my Haynes manual(I know you hate these, but it's all I got), at the power dist wiring 1982 and 1983. The module is fed by the #20, white/lightblue wire. In this diagram, looking at the ignition switch, all of the wipers are shown as arrows, but the one that feeds the white/lightblue is shown as a wide piece on the end of the wiper. This leads me to believe the wiper is touching and giving power to the white/lightblue in the start position as well as the run position. Agree?
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
I do not have any Haynes manuals but here is a page out of the Ford 1983 F100/350 & Bronco Electrical & Vacuum Trouble-Shooting Manual. I now see that power does go to the Red wire through the Resistance Wire. So I guess it is hot, thanks.
