Thread: Whoa, ICM in half?

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  1. #1 Whoa, ICM in half? 
    GT Level Member fri3dchick3n's Avatar
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    Well I have been having this slight misfire on my GTP for a little bit. I would moniter it from my awesome aeroforce. Cyl 3 and 4 would misfire slightly. cyl 3 would be between 2-12 sometimes and cyl 4 would misfire between 2-6.

    I tried cleaning up the coils before and it helped only a little bit.
    New plugs gapped @ .055

    So I wanted to try to clean up the coils and confirm that it wasnt the problem and maybe rotate them around.
    When I pulled the last coil off this bracket piece was very loose and came off.

    Not sure what to do, Is this ok? Or time to get a new one?




    99 GTP: 3.4'' MPS, Overkill PCM, Intake, Catless SD Headers, TransGo Shift Kit, 180º Thermostat, Flipped Dog Bones
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  2. #2 Re: Whoa, ICM in half? 
    GT Level Member fri3dchick3n's Avatar
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    Ok, well I tried cleaning up the the square bronze prieces because they look important. I used some sand paper. Cleaned up the coils connectors to the plugs. Made the misfire worse. Cyl 3 & 4 now misfire up to 8 each. Coils were swapped so im now thinking, ICM connection somewhere or plug wires.

    Plug wires are AC Delco 7mm and were replaced Jan last year, I did not put the heat shields on them after the header install. Could that interfere with the wires over heating?
    99 GTP: 3.4'' MPS, Overkill PCM, Intake, Catless SD Headers, TransGo Shift Kit, 180º Thermostat, Flipped Dog Bones
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  3. #3 Re: Whoa, ICM in half? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Got any friends with a 3800?

    If so, swap and ICM with them and see what the car does, if misfires go away, prolly the ICM at fault.

    SMGPFC Member #1
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  4. #4 Re: Whoa, ICM in half? 
    GT Level Member fri3dchick3n's Avatar
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    Got any friends with a 3800?

    If so, swap and ICM with them and see what the car does, if misfires go away, prolly the ICM at fault.
    Ive only seen one other modded gtp here in Alaska, barely see him driving around too. Pretty much a lonewolf on this car. But I did. MOre reading and I guess it's common for these cylinders to misfire some at idle, I'll just leave them be as long as they don't get worse.
    99 GTP: 3.4'' MPS, Overkill PCM, Intake, Catless SD Headers, TransGo Shift Kit, 180º Thermostat, Flipped Dog Bones
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  5. #5 Re: Whoa, ICM in half? 
    Turbo is the way to go. BillBoost37's Avatar
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    Your icm is not in half. that other part is the bracket it sits on.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  6. #6 Re: Whoa, ICM in half? 
    GT Level Member fri3dchick3n's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Your icm is not in half. that other part is the bracket it sits on.
    Thanks, Yea I found out later on that its supposed to come apart like that.
    99 GTP: 3.4'' MPS, Overkill PCM, Intake, Catless SD Headers, TransGo Shift Kit, 180º Thermostat, Flipped Dog Bones
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