resistor wire? - Team Camaro Tech
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post #1 of 5 (permalink) Old Oct 5th, 09, 03:53 AM Thread Starter
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resistor wire?

I was checking my msd wiring over (came installed on the car when i bought it) and currently the small red on the msd goes to a whitish wire in the harness with the wiper/washer wires. This whitish wire has a different jacket on it then the rubber on the others. I assume it was the original coil + wire? Is this a resistor wire?? If so, is it bad to be using this?? Ran ok with it but easy enough to change to another switched 12v if need be.
thanks
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post #2 of 5 (permalink) Old Oct 5th, 09, 04:04 AM
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Re: resistor wire?

If running a MSD box, i.e., -5, -6, or a -7, the cloth covered wire is the original coil power source, and wired to the box, the wire becomes an "ON" signal.

The box(es) get(s) power from being hooked directly to the battery, so, this OE wire will always provide close to battery voltage as there is not the high current demand as with a point set-up. It should work fine.

Just be sure to keep the purple jumpers supplied with the MSD box in the glovebox in case of box failure. Remove red battery lead, jumper across the leads, and you're back on the road.

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post #3 of 5 (permalink) Old Oct 5th, 09, 07:53 AM Thread Starter
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Re: resistor wire?

Thanks, so that is ok then. Do you know what the thick purple wire in that same harness is supposed to be? My diagram shows it going to the starter solenoid but it seems to be currently wired to the bat+ ??? Is this supposed to be constant 12v or only cranking 12v??
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post #4 of 5 (permalink) Old Oct 5th, 09, 08:24 AM
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Re: resistor wire?

Yes, purple wire to solenoid "S" terminal only during cranking.

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post #5 of 5 (permalink) Old Oct 5th, 09, 09:00 AM Thread Starter
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Re: resistor wire?

thanks. Wow they have this thing wired really screwy!
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