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Plug wiring 1989 Olds 88 w/231 V-6
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comnavguy
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Jun 7, 2009, 8:01 AM
Post #1 of 9
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Plug wiring 1989 Olds 88 w/231 V-6
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Which is the number 1 plug on the 231 V6, and what is the numbering on the Type I coil/module assembly ?
The old coil was removed and tossed over a year ago, and the new coil has no markings on it at all.
I have the Haynes manual, but it doesn't have a diagram.
I need some help!
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Loren Champlain Sr
Veteran
/ Moderator
Jun 7, 2009, 2:58 PM
Post #2 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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The attachment, hopefully will come through, will show you.
Loren
SW Washington
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Attachments:
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Graphic.gif
(66.2 KB)
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comnavguy
User
Jun 10, 2009, 1:01 AM
Post #3 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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I've replaced the coil, the wires and plugs. All new.
The starter turns over, but No fire at all. I am getting nothing out of the coil.
Can you tell me the location of:
ECM fuse and the ECM
C3I fuse
I am also going to check the crank and cam sensors.
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Loren Champlain Sr
Veteran
/ Moderator
Jun 10, 2009, 12:40 PM
Post #4 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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The ECM fuse is #17 in the underdash fuse box. It should be a 10 amp fuse. The cam sensor will not keep it from starting or running. The crank sensor will keep if from getting spark, as will the ignition control module (mounted under the coil packs). The crank position sensor is probably the most common failure on these engines and a good place to start.
Loren
SW Washington
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comnavguy
User
Jun 11, 2009, 2:15 AM
Post #5 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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Lauren,
The #17 fuse is good, but the typical wiring diagram calls for a C3I fuse, and I can't find any such fuse.
Also, where is the crank sensor on this engine ?
I hope I don't have to go under the ignition module. Olds put some green goop sealant under the module and it's worse than a glob of green chewing gum. It'll take a gallon of denatured alcohol to clean-up that mess.
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Loren Champlain Sr
Veteran
/ Moderator
Jun 11, 2009, 2:43 PM
Post #6 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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Looking straight at the harmonic balancer, the crank sensor will be just above it, to the side. Green goop? May be to help disipate heat. (if I spelled that correctly?) Heat is the killer of anything electric.
Loren
SW Washington
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comnavguy
User
Jun 12, 2009, 4:38 AM
Post #7 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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Thanks oagain for the quick reply.
I am in the process of removing the sensor, but I have to remove the harmonic balancer to get one of the two bolts out.
I sold heat sinks and heat dissipation greases and material for 24 years as a manufacturer's rep. This green goop GM used on the bottom of (some) ignition coils might have been sold for heat dissipation, but there is no way it could be effective applied to potting compound attempting to sink heat to something resembling styrafoam.
Whatever it is, it is an unholy sticky mess.
I still can't find the fuse - C3I, which, according to Haynes schematic is in line from the ignition switch to pin M on the C3I ignition module. I have a signal tracer and will try to trace the Pink/Black wire back to the ignition switch. BUT if you know where that fuse is located, it would save me a lot of time.
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Loren Champlain Sr
Veteran
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Jun 12, 2009, 4:23 PM
Post #8 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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See attachment. Just looked it up again. Still showing fuse #17 for ECM, injectors, ect.
Loren
SW Washington
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Attachments:
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Olds 88 fuse box.gif
(9.46 KB)
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autojoe
User
Jun 13, 2009, 9:29 AM
Post #9 of 9
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Re: Plug wiring 1989 Olds 88 w/231 V-6
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I am showing fuse 7 10 amp pink/black wire for injectors.fuse 6 20 amp feeds ignition module pink wire that goes to terminal (P) of ignition module.fuse 17 15 amp ecm fuse from ignition that feeds mass iarflow sensor that comes from ecm.Fuse 6 for ignition module is located in the relay center.
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