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i worked on the same...
Posted by kooch (more from kooch) on Mon, 25 Nov 2002 21:56:18
In Reply to: Electrical Gremlins almost all gone!!!, Jeff Cunningham, Mon, 25 Nov 2002 11:41:16

like you, with the battery in the trunk, i had drastic impacts to voltage level any time something pulled on the system (headlights, radio, brake lights, cooling fans...). i pulled the grounds at the radiator cross member, rear cross member for the battery and the alternator. i cleaned all with sandpaper and reattached. i replaced the alternator ground wire with a new one. the problem is not gone, but it has helped a bit.

have you tried running the ground from the battery back up to the engine? i may experiment with a jumper cable just to see if it makes any changes. i'd like to exhaust all my options before assuming the alternator is bad. but, the voltage does drop when the engine is warmer, thus indicating a possible bad alternator... fwiw, this is becoming a larger problem for me as the voltage drop is impacting the wolf system and causing changes in fuel mixture. it definitely means that i am getting closer to a good solid map as it is getting a lot more sensitive to small differences.

posted by 209.6.246...

Posts in this Thread:

Electrical Gremlins almost all gone!!!, Jeff Cunningham, Mon, 25 Nov 2002 11:41:16
- Jeff, did you run all the way to the OEM ground spot?>, Texron , Tue, 26 Nov 2002 12:43:14
  - Yep, Jeff Cunningham, Tue, 26 Nov 2002 17:10:26
    - Wonder, too, Dan W, Tue, 26 Nov 2002 19:58:18
- i worked on the same..., kooch, Mon, 25 Nov 2002 21:56:18
  - Yep, Jeff Cunningham, Tue, 26 Nov 2002 17:08:30
- 95% of electrical problems are bad grounds....., Mike Lynch , Mon, 25 Nov 2002 14:47:35
  - Re: 99% if you're working on an Alfa, Reuven, Wed, 27 Nov 2002 09:01:58
    - Or Audi's.....nm, Mike Lynch , Fri, 29 Nov 2002 19:37:27

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