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Old 10-15-2013   #1
bamawrx
 
Join Date: Jul 2013
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Can anyone post a chart or tell me which cylinders share coil packs? For a 1990 in case that matters. I also need some recommendations for "must have" technical manuals. I also need to know the layout of the packs under the plenum identified by which cylinders they power. I tried to search the forum but it wouldn't work from my phone for some reason. Thanks for any assistance.
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Old 10-15-2013   #2
Dynomite
 
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Quote:
Originally Posted by bamawrx View Post
Can anyone post a chart or tell me which cylinders share coil packs? For a 1990 in case that matters. I also need some recommendations for "must have" technical manuals. I also need to know the layout of the packs under the plenum identified by which cylinders they power. I tried to search the forum but it wouldn't work from my phone for some reason. Thanks for any assistance.
Photo Provided by ZR1Vette (Coil Numbers Shown)

Service Manual Supplement

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Last edited by Dynomite; 10-16-2013 at 04:14 PM.
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Old 10-15-2013   #3
bamawrx
 
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#6 wire is top right then. I'm going to see if I can trace its pair.
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Old 10-15-2013   #4
bamawrx
 
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#6 wire is top left then. I'm going to see if I can trace its pair.
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Old 10-15-2013   #5
Dynomite
 
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Originally Posted by bamawrx View Post
#6 wire is top left then. I'm going to see if I can trace its pair.
The only one left (I mean the only one you cannot see)....that would be bottom left in photo

Last edited by Dynomite; 10-15-2013 at 09:48 PM.
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Old 10-15-2013   #6
bamawrx
 
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Ok so #6 is paired with #3. I just traced the wire. That is big help. I'm going to check continuity.
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Old 10-15-2013   #7
Dynomite
 
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Originally Posted by bamawrx View Post
Ok so #6 is paired with #3. I just traced the wire. That is big help. I'm going to check continuity.
Looks to me like #6 is paired with #1

drivers side bank from front to rear:
1 3 5 7

passenger side bank from front to rear:
2 4 6 8

Firing order is 1-8-4-3-6-5-7-2

Last edited by Dynomite; 10-15-2013 at 10:33 PM.
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Old 10-15-2013   #8
bamawrx
 
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Very odd. I just traced my #6 wire and its in the #2 position on your chart.
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Old 10-15-2013   #9
Dynomite
 
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Originally Posted by bamawrx View Post
Very odd. I just traced my #6 wire and its in the #2 position on your chart.
let me check...This is identical.....I am now confused
Left side of photo is front of engine.

I assume your #6 wire goes to the Passenger side third cylinder from front?

When you say #2 position you are referring to the coil top right in photo (the pin extreme right) in photo?
Or are you talking Coil top left and pin top row in center of photo?


Last edited by Dynomite; 10-15-2013 at 10:17 PM.
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Old 10-15-2013   #10
bamawrx
 
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From your photo my car has #6 cylinder wire attached to your #2 label.
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