What wires/plugs are these?

[Antbankstwo3]

So since I have owned this car I have found several cut wires & unused plugs. Does anyone have any idea what these might go to? The plug with the white colored wires was spliced into the harness that goes in the wall. The other is from the harness as well. The two cut yellow wires are off the line of wires the run along that protective rail on the driver side valve cover (behind) alternator. Any info is appreciate!

Thanks in advance!

 

[Ed Valvo]

Powermaster brake switch and powermaster motor connector. Since you've converted to vacuum brakes, you don't need them anymore.

 

[Raeban]

The two clipped white wires next to the A/C compressor look like they are what is left of the diagnostic connector for reading engine rpm.

 

[Antbankstwo3]

Powermaster brake switch and powermaster motor connector. Since you've converted to vacuum brakes, you don't need them anymore.

Ahh, ok! Thank you! Makes sense now.

 

[Antbankstwo3]

The two clipped white wires next to the A/C compressor look like they are what is left of the diagnostic connector for reading engine rpm.

Thank u! Any idea why they would be cut? What would they hook up too? My factory tach just recently stopped working (it's stuck at "0"). Could this be a reason why? It was working prior to this them already being cut.

 

[Ed Valvo]

Need more pics. Can you trace where they go?

 

[Antbankstwo3]

Need more pics. Can you trace where they go?

Ok! I will take more & trace them.

 

[Raeban]

Those two wires typically connect to a green spade terminal (C115). They should be wired in series and your factory tachometer will not work if they are not wired together. If you are tracing to confirm trace the white wire to terminal D on the ignition control module.

 

[Antbankstwo3]

Those two wires typically connect to a green spade terminal (C115). They should be wired in series and your factory tachometer will not work if they are not wired together. If you are tracing to confirm trace the white wire to terminal D on the ignition control module.

Thanks for the info! Very helpful! Where would that Spade Terminal connect too?

 

[Raeban]

Doesn't connect to anything, it is just a place to get a tach signal from for diagnostics.

 

[Antbankstwo3]

Doesn't connect to anything, it is just a place to get a tach signal from for diagnostics.

Got it! I will take a look again & report back. Thank u!

 

[Antbankstwo3]

Raeban,

You nailed it! Connected the two wires & it works perfect. I think I must've cut them on accident, because when I got the car there were wires all over & lots of stuff disconnected. So I cleaned a lot of it up & I think I cut those myself. So thank you for directed me back.

 

[Raeban]

No problem, glad you got it fixed.