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1995 Pontiac Bonneville Ignition Coil Pack

Tiny
BBCNG
  • MEMBER
  • 1995 PONTIAC BONNEVILLE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 167,000 MILES
Can someone tell me which wire going into the coil pack (3 coils together) is considered the negative coil wire? There are 14 wires in the plug. I am trying to make a connection and one is 12V, 1V, some register -mV and others +mV on my multimeter. With a single coil, there used to be a positive and negative side. I need the "negative coil wire".
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Monday, July 7th, 2008 AT 12:18 AM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
You didn't say but this is the 3.8 setup, and close up of the coils and ignition module.


https://www.2carpros.com/forum/automotive_pictures/62217_WDa_2.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_WDb_2.jpg


Negative is tack wire
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Monday, July 7th, 2008 AT 9:28 AM
Tiny
BBCNG
  • MEMBER
  • 2 POSTS
You said "Tack" is negative. Did you mean "Tach"? I see one labeled "I/P Tach" which is the white E wire in the 8 way harness. Please let me know.

Thanks!
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Tuesday, July 8th, 2008 AT 1:12 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Yes just a slip by my stubby fingers!
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Tuesday, July 8th, 2008 AT 6:18 PM

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