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Electrical/ Charging/ Exciter- 225 - You thought you had it bad!

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Old 07-05-2012, 01:38 PM   #1
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Exclamation Electrical/ Charging/ Exciter- 225 - You thought you had it bad!

I recently pulled the motor and put new seals, gaskets, etc. and after putting everything back together I had a HUGE electrical problem. I had bad/ no charging and all kinds of warning lights.
After removing the Negative battery cable with the key off, I had 6V running through the body.. Something was still on.. or? Bad ignition? Relay? Bad Ground?
After much trial and error I removed the Positive Cable and STILL found 6V. (neither +/- cable hooked up)
WTF!
I eventual completely removed the battery and found that this was all because of a dirty battery running current to/ through the body. I never had any issues before the pull and it was a black battery so it wasn't obvious.

Problem: Now my exciter wire is only putting out .6V.

When I first pulled everything I pulled out the alternator without discounting the exciter and pulled the wire right out. I was oblivious to the pulled wire and after putting everything back together ran it with the wire dangling. (ROOKIE MOVE) It may have hit ground. I found one article that said the Exciter starts with low voltage and then rises. Is this a result of a alternator signal or something else? Fried my PCM? I get a great charge if I touch the exciter with direct battery voltage. And I also checked/ Cleaned all the wiring under the battery.
2000 Z28, Was A4, now M6. No other wiring modifications.

Last edited by LSXSpeed007; 07-22-2012 at 01:58 PM..
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Old 07-08-2012, 07:31 PM   #2
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Default Bump

Does somebody know what the exciter wire is suppose to put out?
My voltage at the wire is now jumping around from .6 - 5.6v but nothing above.

Last edited by LSXSpeed007; 07-22-2012 at 01:55 PM..
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Old 07-08-2012, 07:31 PM
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