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Stray wire behind dash

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Old 04-15-17, 10:25 AM
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Stray wire behind dash

I'm hoping someone can help me here. I have a 79 that I'm putting back together and have a wiring issue (also posted in my build thread but hoping I can get some help here too). I went to clean up my wiring harnesses before I put the dash back in - toothbrush and WD-40 to remove grime, dust and sandblast grit, etc. - and I found a stray blue wire that was haphazardly routed through and among the different bundles of wiring - definitely NOT factory. I looked carefully at all the connections and only one seemed to be missing a wire - the connection from the harness to the choke magnet / choke mechanism. I traced the other end back to the fuse box where you can see in the pictures that someone popped the wire into the 20A AC COND connection.

I have the wiring diagrams from 79 and the FSM. Both seem to confirm that this connection is the choke connection, and "B-09".


Couple of stupid questions (I'm NOT very electrically inclined - at ALL).

Question 1: Why would this connection only have four wires on one side per the wiring diagram, and 5 on the other per the FSM??

Question 2: Should the choke magnet need a separate 20 amp feed?

Some pics for reference.





This is where the stray wire was popped into the fuse block. The two gray wires to the left were speaker wires, now removed.



It was tied into the 20 amp AC and DEFOG fuse.



The connection that the other end of the blue wire was dangling near was identified as B-09 in the wiring diagrams.



The wiring diagram matches what the connection has - 4 wires, in the right color and sequence.



The connection B-09 shows up in two places on the wiring diagram.



This is the other half of the connection, and it has FIVE wires, all matching the FSM.





This is the FSM picture of the connection.




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