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What a low blow, these modules are about $35 at carquest. You can find .087" flag plugs (3/16") , male and female crimp ons, at Napa, I haven't seen them anywhere else. After crimping them on the wire, try to pull them off, if they do you didn't do it hard enough. A professional crimp tool, either Ideal brand from home depot or Klein brand from electrical supply, helps make better crimps. The import crimp tool at home depot is the same short garbage everybody else sells, they don't often have the Ideal one. After wiring up, and the car runs, secure the naked flag plugs in the sockets of the new module with silicon seal glob, this keeps them from falling off. I know of no way to get the mating plug shell except junk, and 31 year old plastic plugs will be fragile garbage anyway. The three pin plug, black orange violet wires, goes to the same color wires on the distributor. Some replacement modules the black wire is black and green, this is because it goes to the ground in the distributor. The green wire off the module goes to the minus on the spark coil, the plus on the spark coil goes to the low side of a 1.8 ohm resistor, from the other side of the resistor goes to the I of the ignition switch. The pink on the module (maybe red on a new one) goes to the same bottom of the 1.8 ohm resistor off the ignition switch. Some cars may have a 1 1/2 ohm "fusable link" wire from the ignition switch instead of a resistor on the firewall, I don't know. This wire sags to 6 vdc when the engine is running because of the resistor. The blue/yellow wire (varies on modules) goes to a start 12v wire, either the one that picks up the starter relay, or another one in the harness somewhere that comes from the S terminal of the ignition switch. I'm using a blue for start, this has been a ford convention for years but I don't have the specific drawing for your car. My 84 thunderbird had an 80 granada v8 in it going by the vacuum diagram, and had a 79 module, according to O'brians when I tried to buy a new one. I put it in 59 ford car, so I know the wiring diagram by heart. The 79 module has two other wires on a separate plug that go to a low vacuum switch, to retard the spark at full throttle. You can't buy one aftermarket, maybe ford will sell you one. It retards the spark if the throttle is wide open, keep the engine from knocking. I haven't figured out whether open or closed is retard, but the engine will run okay without. Set the spark up as much as you can for best economy, and don't ever floorboard the throttle.
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