LT1-LT4 Modifications 1993-97 Gen II Small Block V8

few quick questions engine harness clean up

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Old 03-31-2011, 01:13 PM
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Default few quick questions engine harness clean up

I am wanting to unpin all the things that have been deleted. All a/c components, egr, air pump, abs, cruise control, maybe more but can't remember. Is their any ill effects as in other circuits tied in? Any help will be greatly appreciated.

Hey James in the 93 harness what us c100. I don't remember disconnecting in. I'm want to remove it as well if I don't use it anymore.

Edit: I remember now that it plugs into the harness that runs up the passenger side and up.to the core support. Now my questions is that one of the wires i cut to remove another unused pigtail tied into this plug. It is a brown wire in which I know is a ground. So can I just run it to the block ground that is right there by it, or even a chassis ground and call it good?

Last edited by litch2004; 04-14-2011 at 05:19 PM.
Old 03-31-2011, 02:15 PM
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I have all these just tucked away right now but I'd rather just remove them altogether.
Old 03-31-2011, 02:33 PM
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Unpin em' mark em and tuck... No worries
Old 03-31-2011, 02:37 PM
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I'm wanting to completely remove everything, wires and all. But thank you for the imput. Out of 20 views you are the only person to post. No body else has done this? I know there is.....

Last edited by litch2004; 03-31-2011 at 03:17 PM.
Old 03-31-2011, 07:58 PM
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go to shoeboxs website and get the pin out chart. then unplug the connectors to the ecm and go to town. i just got rid of at least 10 plugs
Old 03-31-2011, 08:01 PM
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ok sounds good. just wanted to make sure before I went to unpinning everything. so is it pretty easy to pull the engine harness out so I can do this easily and reward the harness in new loom?
Old 03-31-2011, 08:18 PM
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Yep just remove them and never look back
Old 03-31-2011, 08:23 PM
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that's what i am gonna do. just waiting to get the motor back in first.
Old 03-31-2011, 09:16 PM
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Any suggestions on to remove the engine harness or not? It needs to be re-loomed. Where is it connected to the interior harness at on my 93?
Old 03-31-2011, 11:41 PM
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Originally Posted by litch2004
Any suggestions on to remove the engine harness or not? It needs to be re-loomed. Where is it connected to the interior harness at on my 93?
Under the kick panel on the passenger side.
http://shbox.com/1/1995_Z28_engine_harness_A4.jpg
Old 04-01-2011, 01:17 AM
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Ya I saw that post in that other guys thread and didn't want to hijacking. But that's for a 95 and new mine was different just didst know to what extent. Is the abs, a/c, air pump and cruise control even in the same harness? I don't see them listed.
Old 04-01-2011, 01:31 AM
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Originally Posted by litch2004
Ya I saw that post in that other guys thread and didn't want to hijacking. But that's for a 95 and new mine was different just didst know to what extent. Is the abs, a/c, air pump and cruise control even in the same harness? I don't see them listed.
Sorry, here's the 93. Pretty much the same at that end.
I pulled my 93 harness out a few weeks ago.
Attached Thumbnails few quick questions engine harness clean up-93lt1_harness.jpg  
Old 04-01-2011, 01:47 AM
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Ok thanks. It is to small to see it on ky phone and blurry when I zoom in so I will look at it when I get home. Thank you for the info.
Old 04-01-2011, 01:55 AM
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Here's a bigger version
http://www.lt1swap.com/pictures/93lt1_harness.jpg
Old 04-01-2011, 02:03 AM
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That works too lol. what about abs, air pump, and cruise?
Old 04-01-2011, 02:08 AM
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Originally Posted by litch2004
That works too lol. what about abs, air pump, and cruise?
Those are all on a different harness that runs along the driver's side rail.
All of that is unplugged on mine actually. I wonder if I can pull it all out.
Old 04-01-2011, 02:17 AM
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Mine have been as well for a few years now. I'd like remove all of it as well as relocate the fuse box, headlight module, and ecm. I already know where I'm putting the ecm but I'm not looking toward to extending all the wire for the fuse block. The is a lot of those in there.
Old 04-01-2011, 05:09 PM
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Bump for the last few pigtail unpinning locations. (air pump, cruise control, abs module)
Old 04-02-2011, 10:37 AM
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Bump for the day
Old 04-02-2011, 03:49 PM
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Originally Posted by litch2004
Bump for the last few pigtail unpinning locations. (air pump, cruise control, abs module)
i have yet to remove them. i was planning on removing those tomorrow and a few other odds and ends, ill let you know where they go , if nothing else pops ups.


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