Topic: Ignitor wiring help

[YotaJosh]

Sorry if this is a simple noob issue. I'm in the process of swapping the 20R engine out of a '79 truck into an '82 truck that had a 22R. Most everything is done, except some wiring. I'm a little confused on how to get the ignitor/coil wired up. The '82 truck has a factory SR5 tach cluster, the '79 had no tach.

The only ignitor I have is from the '79. It has 2 plugs (one has a yellow wire and a brown wire, the other has a black wire [which I assume is GND]). So three wires total. The '79 harness had matching wiring.

The wiring harness in the '82 also has 2 plugs (one has a brown wire, the other has a black wire). Two wires total here. These plugs don't match up (shape wise) with the '79 plugs.

I assume the brown wires connect somehow, and the black wires connect somehow, but my question is: where does the yellow wire coming from the ignitor (actually from the coil) go? I can get pics if needed.

Thanks

[79coyotefrg]

Josh  just use the ignitorand coil  from the 82

[79coyotefrg]

i believe the yellow wire is the tach wire  but not sure,  my wiring is  so old its hard to tell what color they are but i can get pics,  if you need them

also i have a 83 ignitor/coil if you want it come get it

[Rocksurfer]

All I have let of my conversion is a picture and I can't make out how it was wired, hope you can. I liked the solid state better but I did keep the old one just in case.

[YotaJosh [OP]]

Josh  just use the ignitorand coil  from the 82

If I had it I would.

Well, I played around with a test light and a volt meter and figured out that the brown and yellow wire on the '79 harness are both ignition switched 12V hot. Yellow wire goes to the + on the coil, the brown wire goes to the ignitor. The one brown wire on the '82 harness is also ignition switched 12V hot, so I just tied my yellow and brown wires to the single brown, and the black to black. I can't crank it yet, so we'll see what happens. 

[79coyotefrg]

oh,  cool

ok,  well i have 2 coils/ignitors  with all 3 wires  your choice, $5 or i'll bring it to you for $25