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Author Topic: Electrical Gremlins  (Read 9673 times)

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Offline Draekon

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Re: Electrical Gremlins
« Reply #15 on: July 07, 2012, 01:30:45 PM »
Quote from: vangremlin on July 07, 2012, 12:41:57 PM
Quote from: rollguy on July 06, 2012, 10:43:16 AM
I believe the wire in question (red wire with tracer) is the resistor wire for the ignition.  That might explain why it gets hot.  When the starter is engaged, the solenoid puts a full 12v to the ignition (via green? wire).  If you do an ignition upgrade (big cap), you can delete the resistor wire from the system and just use +12v from the IM (yellow wire).  The coil would need to be changed to 3 ohm.

Thanks to everyone for their suggestions.  Rollguy, I'm not sure I'm following you.  I did the big cap upgrade years ago, and the yellow wire that is on the same post as the red w/ tracer is the one that got cut as part of that upgrade.  The red w/tr is labeled as the resistor wire and hooks onto a yellow wire that goes to the actual ignition switch.  What is the purpose of the resistor wire?  Are you saying that because I did the big cap upgrade I may not even need it?  Thanks again.

If you replaced the coil with a 3ohm coil (like the petronix one), then the resistor wire isn't needed and gets bypassed.  If you are using a lower resistance, 1.4ohm, coil, then the resistor wire is still needed so that the ICM doesn't get burned out.
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Offline rollguy

  • Turbo Diesel Eagle
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Re: Electrical Gremlins
« Reply #16 on: July 07, 2012, 02:33:04 PM »
Quote from: Draekon on July 07, 2012, 01:30:45 PM



If you replaced the coil with a 3ohm coil (like the petronix one), then the resistor wire isn't needed and gets bypassed.  If you are using a lower resistance, 1.4ohm, coil, then the resistor wire is still needed so that the ICM doesn't get burned out.
Exactly.  The yellow wire provides power for the IM, and your new coil (3 ohm).  The resistor wire can be abandoned.
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Offline Draekon

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Re: Electrical Gremlins
« Reply #17 on: July 07, 2012, 02:48:45 PM »
Quote from: ammachine390 on July 07, 2012, 02:13:58 AM
Quote from: vangremlin on July 06, 2012, 09:36:49 PM
Quote from: Draekon on July 06, 2012, 11:11:04 AM

Also, with your eagle being an '81, it shouldn't have an idle speed control module (unless its a California car).

It definitely has the idle speed control, but not a CA car.  Its an original CO car, set up for high altitude - maybe that's why it has the idle speed control module??

All 81 Eagle's had the idle speed control. It was the California models that got the feedback carburetor as well though.

I guess I just haven't looked under my hood recently.  I was basing that statement on the wiring diagrams I have.
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